Imagination Companions, A Foster's Home for Imaginary Friends Wiki
Imagination Companions, A Foster's Home for Imaginary Friends Wiki

Season 1 : 2004

# Title Airdate Prod. Code
1-3 House of Bloo's August 13, 2004 (2004-08-13) 101-103
Mac sends Bloo to live at Foster's Home for Imaginary Friends after being told by his mother that he is too old to have an imaginary friend. There, they meet Mr. Herriman, Frankie, Wilt, Coco, and Eduardo. Mac promises to visit Bloo every day, but they face problems when Mac's brother Terrence and a fiendish imaginary friend named Duchess want to get rid of Bloo. Now it's up to Mac and his new best friends to join forces and rescue Bloo.
4 Store Wars August 20, 2004 (2004-08-20) 107
It's Madame Foster's birthday and Frankie has forgotten to buy streamers, so Mr. Herriman orders her to go get some. Bloo, Eduardo, Mac, Wilt, and Coco tag along, but wander off while in the store, slowing Frankie down.
5 The Trouble With Scribbles August 27, 2004 (2004-08-27) 109
Bloo finds out about a door in the home that everyone is forbidden to open. As he asks around about the door, no one tells him what is inside of it. However, in the middle of the night, Bloo finally opens the door, and releases imaginary friends called scribbles. The scribbles are natural hard-workers that begin to work around the house, making everyone lazy.
6 Busted September 3, 2004 (2004-09-03) 104
Mr. Herriman isn't happy about Bloo not perfectly following the rules of the house. When Bloo is told by Mr. Herriman that he will be kicked out of the home if he doesn't follow the rules, Bloo gets so stressed out that he accidentally breaks a bust of Madame Foster. Bloo and his friends try to figure a way to fix the broken bust before Mr. Herriman finds out.
7 Dinner is Swerved September 10, 2004 (2004-09-10) 105
When Mac visits Foster's, Bloo wants to show him something up on the roof, though when it's time for them to go back downstairs, they find themselves lost and unable to get downstairs. Meanwhile, everyone in the dining room sneaks food when Mr. Herriman isn't looking after he insists they wait for Bloo to arrive before eating dinner.
8 World Wide Wabbit September 17, 2004 (2004-09-17) 111
Mac and Bloo are using Frankie's digital camera to make video interviews for the new Foster's website, when they stumble upon Mr. Herriman dancing, and acting silly. Mac video tapes it, but after a quick laugh he decides to erase the embarrassing footage, but before he manages to do so — Bloo grabs the camera and shows the footage to Frankie, where they eventually upload the footage to the Internet causing Mr. Herriman to be ridiculed, and humiliated by all of the imaginary friends.
9 Berry Scary September 24, 2004 (2004-09-24) 112
A new friend named Berry enters the house as sweet as can be, though with one glance at Bloo becomes love struck and is determined to make Bloo love her back, and feels that Mac is a threat to keep Bloo from liking her.
10 Seeing Red / Phone Home October 1, 2004 (2004-10-01) 110
Seeing Red: Terrence has an idea to make up a friend named Red to beat Bloo up with so he can bully Mac to his heart's content, though the friend he creates is friendly instead of being mean and violent.

Phone Home: Bloo is jealous of Wilt getting special attention for the number of abandoned imaginary friends he brings to Foster's, so he tries to rescue imaginary friends just like Wilt does. When Bloo finds a man in a cell-phone suit and thinks he's a friend, he takes him to Foster's, thinking everyone will give him more praise than they give Wilt.

11 Who Let the Dogs In? October 8, 2004 (2004-10-08) 113
After Eduardo finds a puppy when he was taking out the trash, he decides to keep it, despite the fact that dogs are not permitted inside the house due to Mr. Herriman suffering from a fear of dogs. However, despite Eduardo's best efforts, the dog gets loose and starts causing problems that Eduardo takes the blame for in fear of the puppy being found out.
12 Adoptcalypse Now October 15, 2004 (2004-10-15) 106
It's Adopt-A-Thought Saturday, an event that focuses on getting good friends adopted on the weekends when children are out of school. Mac and Bloo find out what Adopt-A-Thought Saturday is about after their good friend Jokey gets adopted, and spend the day forcing the friends back into the house so that they won't be adopted.
13 Bloooo October 22, 2004 (2004-10-22) 108
Bloo and Mac enjoy playing with each other in the mud while raining, which causes them to get sick. As Mac is taken home by Frankie, Bloo misses out on the scary movie the friends planned to watch that night. When Wilt, Eduardo, and Coco begin to believe that the ghost is real, they mistake a pale Bloo to be the ghost. Meanwhile, Frankie gets locked out of the house in the rain after dropping off Mac and, as she tries to get back in, feels she's being stalked.

Season 2 : 2005

# Title Airdate Prod. Code
14 Partying is Such Sweet Soiree January 21, 2005 (2005-01-21) 201
Frankie and Madame Foster are leaving for the day, so Mr. Herriman is placed in charge of the house. However, Madame Foster inadvertently gives Bloo the idea to throw a wild party, and he plans to do so without Mr. Herriman's consent. While they manage to come up with a method to distract Mr. Herriman, there is still one person that could stop the party, and that's Mac. Bloo knows that with a little bit of sugar, Mac won't be a problem, or so he thinks. But, however, one small drop of sugar turns Mac into a sugar-crazy maniac, and Bloo must stop him before he ruins the party, while meanwhile he finds even more to worry about, as Mr. Herriman comes to his senses.
15 The Big Lablooski January 28, 2005 (2005-01-28) 202
Mac drafts the gang onto Madame Foster's bowling team to help her beat her arch-rival, Jerkins. But when Mac gets booted off his own team, he must learn the ways of the ball from a bowling guru. Meanwhile, Bloo is the best player on the Foster's team, but the other team steals him by offering him a paddleball if he wins for their team.
16a Where There's a Wilt, There's a Way February 4, 2005 (2005-02-04) 203a
All Wilt wants to do is watch a basketball game on TV, but the house's ridiculous requests and Wilt's inability to refuse to them keep him from seeing the big game. This also reveals his dark secret: He can't say no to helping others unless he wants to have a panic attack which (of course) happens.

Paired with: Everyone Knows It's Bendy

16b Everyone Knows It's Bendy February 4, 2005 (2005-02-04) 203b
A new imaginary friend has come to Foster's, but he keeps misbehaving all around the house. All other imaginary friends are taking the blame, until Bloo comes up with his master plan. Mac only makes a cameo at the end of this episode.

Paired with: Where There's a Wilt There's a Way

17a Sight for Sore Eyes March 4, 2005 (2005-03-04) 204
When Ivan, a seeing eye friend, loses his blind kid, the friends try to find the boy before harm comes to him.

Paired with: Bloo's Brothers

17b Bloo's Brothers March 4, 2005 (2005-03-04) 204b
Mac takes Bloo to school for show and tell. The kids love Bloo so much, that they imagine their own variations on Bloo. Hundreds of Bloos are created, and Bloo dubs them his minions and himself leader. Mac was going to take Bloo to see the Ice Charades, but with hundreds of Bloos, he can't figure out which is the original.

Paired with: Sight for Sore Eyes

18 Cookie Dough March 11, 2005 (2005-03-11) 205
When Foster's needs a new roof, Bloo bakes up a plan to sell Madame Foster's amazing cookies after his first attempt at selling lemonade in the middle of winter fails. When they finally get enough money to buy a new roof, Bloo gets a "little" carried away, but this craziness further becomes bigger as he wants to become rich and make all the imaginary friends his servants. Meanwhile, Frankie eats all the cookies she can find, for she's crazy for them. The ending credits briefly shows that she's gotten fat from her near constant eating.
19 Frankie My Dear March 18, 2005 (2005-03-18) 206
Frankie is left neck-deep in paperwork when she wants to go out with her friends on Friday night, so Mac tells her he'll file the paperwork for her. Overjoyed by this, Frankie calls him "the best" and kisses him on the cheek. Mac then develops a huge crush on Frankie, and later, Bloo does too. The two start competing for her love the next day as Frankie is unusually happy about the previous night, mentioning how she met the man of her dreams. Soon they realize her unnamed suitor is neither of them, and Mac and Bloo become jealous, trying to thwart every guy she comes in contact with, namely Chris (a pizza guy), Prince Charming (an imaginary friend), and her real date, Dylan, who takes her to a fancy restaurant for their date. Mac, Bloo, Prince Charming, and Chris form a team- and a master plan to get Frankie's new boyfriend.
20 Mac Daddy May 6, 2005 (2005-05-06) 207
One morning, Mac wakes up to find that he's unintentionally created another imaginary friend named Cheese. Madame Foster allows the same rules as there are for Bloo, but Bloo does not approve of his new brother. After many attempts to get rid of him, Cheese disappears on his own. Bloo realizes that Foster's could be a very dangerous place for one so stupid as Cheese.
21 Squeakerboxxx May 13, 2005 (2005-05-13) 208
The gang goes to an arcade and everyone's winning lots of tickets except Bloo. Bloo then becomes very interested in a prize thats 500 tickets: glow in the dark Dracula teeth. Bloo wants them to give him their tickets so he can get one, but the others decided to collect all of their tickets and get a rubber elephant, which Bloo grows an obsession with later on.
22 Beat with a Schtick May 20, 2005 (2005-05-20) 209
Bloo has a reputation for being a funny imaginary friend, though his jokes sometimes offend people. When Bloo cracks a joke about an imaginary friend's height, the "New Guy" challenges him to meet him outside at 4 o'clock.
23 The Sweet Stench of Success May 27, 2005 (2005-05-27) 210
When Bloo becomes jealous of Eduardo and the other friends for appearing on TV, he pretends to be a very sick friend in order to appear, despite the fact that it is only for friends up for adoption. A Hollywood agent named Kip Snip soon turns him into a star, but starts to treat him badly and won't let him see Mac.
24 Bye Bye Nerdy July 1, 2005 (2005-07-01) 211
After beating Mac's high score in a video game, Bloo goes to rub it in his face at school, but is horrified when he comes to the conclusion that Mac is a nerd. When Mac arrives, Bloo quickly works to make Mac cool, but none of their ideas work. Just as Mac says he doesn't care about being cool, the coolest kid in the school, Jamez Withazee tells him that the fact that he doesn't want to be cool, makes him cool, and invites him to 'The Rock.' Since Mac takes up this offer and is not at Foster's at 3 o' clock, Mr. Herriman is very quick to ensure that Bloo gets adopted.
25 Bloo Done It July 8, 2005 (2005-07-08) 212
During the production of the home's newspaper, Uncle Pockets, the most frequently adopted imaginary friend to come to Foster's, returns yet again. Uncle Pockets' charm drives all the other friend's attentions to him, making Bloo jealous. Bloo then decides to try and expose Uncle Pockets as a fraud through the home's newspaper.
26 My So Called Wife July 15, 2005 (2005-07-15) 213
A rich benefactor is considering giving money to a charity, and visits Foster's to see if it is worthy. Mr. Herriman gets Mac and Bloo to keep Coco out of the way but in the end it is only when the benefactor mistakes Coco as Mr. Herriman's wife that he considers Foster's, and invites them to his mansion where he will decide which charity gets the money. Mr. Herriman then tries to teach Coco to be sophisticated, while Mac and Frankie teach Bloo sarcasm, since he doesn't understand that Mr. Herriman was being sarcastic when he and Mac were promised jet cars.

Season 3 : 2005-2006

# Title Airdate Prod. Code
27 Eddie Monster July 22, 2005 (2005-07-22) 301
Eduardo runs away from the home to prove that he's not a coward. Meanwhile, Terrence is looking for an imaginary friend to compete in the Extreme-O-Saur Battle, and he comes across Eduardo. Terrence uses him to fight against huge imaginary friends at the junkyard. Mac, Bloo, Wilt, and Coco must search for Eduardo. the Eds from Ed, Edd, and Eddy make a cameo appearance along with Dexter in this episode.
28 Hiccy Burp September 5, 2005 (2005-09-05) 302
Richie Wildebrat, a kid at Mac's School, keeps bragging about his imaginary friend, Blake Superior and how they'll win the imaginary friend talent show pageant. Mac wants to beat him so it can end Richie's bragging, so he asks Bloo to enter the pageant, but Bloo doesn't want to. Bloo gets the hiccups, which Blake says is ridiculous, so Bloo decides to enter.
29 Camp Keep a Good Mac Down September 9, 2005 (2005-09-09) 303
Mac and Bloo ask Mr. Herriman to go camping. He refuses to let them go but Madame Foster thinks it's a great idea. After they arrive Bloo has eaten all the food. It's up to Mr Herriman to go out in the wild to find some food.
30 Imposter's Home for Um... Make 'Em Up Pals September 16, 2005 (2005-09-16) 304
Goofball John McGee comes to Foster's, who is a total pain. Frankie thinks he's a teenage kid passing himself off as an imaginary friend, who always needs help on homework, needs to wash his jerseys, and eats all the food that Frankie bought from the store, but everyone else believes otherwise. So now, Frankie is out to prove him as a fraud.
31 Duchess of Wails September 23, 2005 (2005-09-23) 305
Foster's is finally able to get rid of Duchess when she is adopted. However, the family that adopted her turns out to be Mac's neighbors and her complaining gets to be too much for Mac's mother to handle. Terrence tells Mac that she is thinking about moving to Singapore. Mac and Bloo attempt to frame Duchess by wrecking up her owner's home, but this only makes them love her more. They decide that they must bring her back to Foster's, but are prevented from doing so when Terrence warns of their arrival.
32 Foster's Goes to Europe November 4, 2005 (2005-11-04) 306
Mac wins a sweepstakes and receives tickets to Europe. But when the gang tries to pack at the last second, everyone has delays that make them later and later; Frankie is making sure that Madame Foster can take care of the house while everyone is gone, though all she wants to do is break the rules, which is tempting to Bloo.
33 Go Goo Go November 11, 2005 (2005-11-11) 307
Mac falls on a girl named Goo when he gets something out of a tree, and she begins visiting Mac everyday at Foster's. With her hyper active imagination, she creates a new friend one after another, which causes a big problem for the other imaginary friends in the house. After she creates so many imaginary friends that it crowds the whole house, the others have to sleep in the Foster's bus and feel that Mac is responsible for Goo's continuous visits.
34 Crime After Crime November 18, 2005 (2005-11-18) 308
Mr. Herriman's carrot addictions lead him to blame Coco for stealing the carrots that were to be used for dinner that night, though it was him who hid them around the house. With no carrots left, the only thing left to make for dinner is "It," a dish that Frankie has never been able to make. When Bloo learns what "It" is, he is determined not to eat it. Mr. Herriman meanwhile is punishing everyone who comes near his hidden carrots, and sending them to their rooms with no supper. Bloo decides to do all the bad things he can think of to escape eating "It" by getting sent to his room, but Mr. Herriman is so busy punishing everyone else, that every time Bloo tries to get in trouble, Mr. Herriman overlooks him, blaming everybody but him, and chaos ensues.
35 Land of the Flea November 25, 2005 (2005-11-25) 309
When Eduardo gets fleas from his puppy, he becomes discontent as the fleas are driving him mad. However, despite the way he feels, he decides to keep the fleas on him when he befriends them; though Frankie and Mr. Herriman want none of it and they decide to go to drastic lengths to get the fleas removed. Meanwhile, Bloo wants to get some fleas of his own and he does anything possible in order to attempt to get Eduardo to share them.
36 A Lost Claus December 1, 2005 (2005-12-01) 310-SP
The Foster's Christmas special. When various imaginary Santa Clauses are brought to Foster's, Mac begins to lose his faith in Santa's existence, so it's up to Bloo and the others to help restore Mac's faith in the Jolly Old Elf. Bloo sends Wilt on a sleigh ride around the world and tries to get Eduardo to slide down the Foster's chimney, trying to prove that Santa is real, and in the process, cost Coco her job at the mall as Santa; Bloo learns that Mr. Herriman is only giving present to everyone (which is part of the reason that he tries to prove Santa real), and in his selfishness tries to make Herriman hand out more presents, in a rather interesting way. Thus, his plan fails as he accidentally drives Mr. Herriman to throw away all the decorations and gifts. To make things worse, Wilt is lost, Eduardo is stuck, and Coco is mad at Mac. Will this be the worst Christmas ever, or will a big jolly man save the day?
37 One False Movie February 10, 2006 (2006-02-10) 310
Mac makes a home movie about Foster's Home for his school project, but Bloo edits it into a humorous film with flatulent sound effects. This leads him to be entered in the state student film festival. With Bloo's help, they make "T-Rexatron Alienwolf III, A Prequel In Time: The Unrelenting."
38 Setting a President February 17, 2006 (2006-02-17) 311
Everyone in Fosters is sick of Herriman's rules, so Frankie decides that she should run for president. Bloo also decides to run when it is stated that any resident of the house can be a candidate. After Bloo resigns, he helps Herriman by giving the house embarrassing and even untrue facts about Frankie. Frankie eventually wins, but Herriman is left without a job.
39 Room With a Feud March 17, 2006 (2006-03-17) 312
When a recent adoption leaves a room at Foster's vacant, Bloo, Coco, Wilt, and Eduardo all fight over it, along with another friend named Peanut Butter. Everybody soon starts to make contests to see who will win the room, which leads Bloo to try to make contests that he can cheat at.
40 Cuckoo for Coco Cards March 24, 2006 (2006-03-24) 313
When Mac takes his classmates on a field trip to Foster's, everybody loves Coco and Bloo wants all of the attention. After Coco lays eggs with imaginary friend trading cards, all the friends start trading and collecting the cards. Bloo becomes obsessed, and tries to be the first to collect them all.

Season 4 : 2006

# Title Airdate Prod. Code
41 Challenge of the Super Friends April 28, 2006 (2006-04-28) 401
When a large and dangerous imaginary friend is destroying the city, a superhero friend named Imaginary Man comes and saves the day, leaving Mac impressed. But once Mac becomes Imaginary Man's sidekick, Bloo becomes jealous and joins forces with Nemesister, Imaginary Man's mortal enemy and sister.
42 The Big Picture May 5, 2006 (2006-05-05) 402
The residents prepare for the annual house photo. Meanwhile, Bloo, Mac and Goo search for an answer behind a weird photo of Foster's taken years ago, Eduardo gets an "extreme makeover" from Duchess, Coco realizes she needs to lose weight and Wilt has trouble being in the house photo without getting his head cut out from the banner.
43 Squeeze the Day May 12, 2006 (2006-05-12) 403
When the friends go out to the beach and leave Bloo in the house alone on purpose so that he doesn't ruin the fun, he and Mac try to squeeze in as much fun as possible and make it the best day of their lives.
44 Neighbor Pains May 19, 2006 (2006-05-19) 404
Old Man Rivers, who lives across the street from Foster's hates imaginary friends on his lawn, and on "Adopt-A-Thought Saturday," his grandson, Young Man Rivers, makes faces at Bloo. Bloo and Madame Foster throw papers — that are adoption forms — at Old Man Rivers, who keeps them for himself, causing Bloo and Wilt to try to get them back. Meanwhile Edurado tries to keep the parents busy so Bloo can get the adoption forms, but the parents get more impaitent by the moment.
45 Infernal Slumber July 17, 2006 (2006-07-17) 405
Bloo and the gang arrive at Mac's apartment for slumber party that Mac didn't plan. But because they are all so loud, Mac's mom could wake up and get them all into trouble.
46 I Only Have Surprise for You July 27, 2006 (2006-07-27) 406
Bloo, along with the rest of the house, plan a surprise party for Mac. However, Mac wants no part of it.
47 Bus the Two of Us August 1, 2006 (2006-08-01) 407
Bloo notices after a trip to the grocery store that Frankie has left the keys in the bus, and decides to take Mac for a joyride in the Foster's bus, and Wilt, Coco and Goo promise to keep it a secret much to poor Wilt's disconcern.
48 The Big Cheese August 7, 2006 (2006-08-07) 408
Foster's is being put on TV, and Frankie wants everything perfect. Meanwhile, Cheese keeps showing up at Foster's, despite being told numerous times that he doesn't live there. In an attempt to keep him out, Mr. Herriman installs a security system. Unfortunately, due to his misreading of the directions, nobody knows the password except for Cheese, who memorized the code as a song. It is now up to the gang to get Cheese to recite it, but now he won't say it, and craziness ensues.
49 Bloo's the Boss November 3, 2006 (2006-11-03) 409
Bloo announces that an imaginary friend is in trouble. No one wants to help him at first because it might be a trick, but Madame Foster forces Frankie, Coco, Wilt, and Eduardo to help him. They find that the imaginary friend is stuck in a tree and Bloo tries to help by climbing on top of them, but causes them to fall. Madame Foster manages to save the friend, and is awarded for her good deed. Bloo tries to prove that he can also make good deeds, and makes his own home for imaginary friends.
50 Emancipation Complication November 10, 2006 (2006-11-10) 410
An imaginary pen, that resembles Abraham Lincoln, is caught with a student cheating on a test by Mac's teacher. He is saved from the classroom's closet by Mac and Bloo along with his au pair, a green ogre named Moose. The Lincoln pen cons Madame Foster into a new plan to adopt an overcrowded home to unsuspecting adopters for a fee, then takes over the house, planning to turn it into a casino.
51 Make Believe It or Not November 17, 2006 (2006-11-17) 411
In her sleep, Goo accidentally creates all the villain characters from a make believe game that she had helped out on while the power was out at the home during a thunderstorm, who then imprison Mac and Bloo at the home. Now, the gang must finish the game to save their friends.
52-53 Good Wilt Hunting November 23, 2006 (2006-11-23) 412-413
(1-hour movie) It's time for the Five Year Creator Reunion Picnic, where imaginary friends' creators come to Foster's to see their imaginary friends. However, once again, Wilt's creator doesn't show up. Wilt, believing that his creator is still mad at him for a past let-down, sets off on a cross-country journey to find an imaginary friend that he lost to in a past basketball game and challenge him to another game to set things straight. Mac, Bloo, Frankie, Coco, Eduardo, officer Nina Valerosa (Eduardo's creator), and two scientists (who found Coco on an island) that both fight over Frankie set out to find Wilt, and on the trail meet many twists and turns. All the while, we come to learn about Wilt's mysterious past.

Season 5 : 2007-2008

# Title Airdate Prod. Code
54 Cheese A Go-Go May 4, 2007 (2007-05-04) 501
Bloo is convinced that Cheese is an alien after watching a sci-fi movie about brain-eating spacemen and reading a tabloid newspaper with a picture that has an alien that resembles him, and attempts to send a message to outer space. This episode started the Cartoon Network Invaded promotional storyline in the USA.
55 The Buck Swaps Here May 18, 2007 (2007-05-18) 502
The gang goes to a swap meet where a pick pocketer is taking money. He accidentally loses a $100 bill, that Eduardo finds. Ed takes his money around the swap meet, looking for something to buy. But even the most sensible of the gang are tempted by the bill, and with the thief also trying to catch his bill, craziness ensues.
56 Say It Isn't Sew June 8, 2007 (2007-06-08) 503
When the whole house goes to a fair, Mac and Bloo compete to see who will throw up last on a ride called the Vomit Comet. Bloo ditches Mac to ride in Madame Foster's Firebird, but a "quick" stop at the fabric store that is just across the street from the fair suddenly turns into a nightmare for Bloo that doesn't seem to end, causing him to take big measures to try to get out of it.
57 Something Old Something Bloo June 15, 2007 (2007-06-15) 504
Bloo visits a retirement home and disguises himself as a senior, getting to live there and being pampered all day long. When Mac finds out about it, Madame Foster teams up with him in order to get Bloo out of there.
58 The Bloo Superdude and the Magic Potato of Power! September 10, 2007 (2007-09-10) 505
Bloo entertains Mac with an action-packed story about a crystal "potato" of power. A little boy (Eduardo), an alien (Coco), a hermit (Wilt), a magical fairy (Frankie), and the Superdude (Bloo) attempt to protect the crystal potato from the evil Lord Snooty (Herriman), who is taking away all the fun in the land ruled by the Queen (Madame Foster). The story, Mac finds out, is a complete exaggeration of the day's events at the Foster's home.
59 Schlock Star September 11, 2007 (2007-09-11) 506
A rock band called PizzaParty refuses to let Bloo join, so he decides to make his own band.
60 The Bride to Beat September 12, 2007 (2007-09-12) 507
Bloo is convinced Mac is going to be married, so he tries to grow up in order to impress Mac.
61 Affair Weather Friends September 13, 2007 (2007-09-13) 508
A rich kid named Barry Bling comes to Foster's looking for a friend. He has a mansion filled with toys, which tempts Bloo so much that he starts cheating on Mac. But there's something strangely familiar about Barry...
62 Ticket to Rod October 5, 2007 (2007-10-05) 509
Bloo, Mac, Frankie and others are tangled up in a chaotic series of events when Frankie wins tickets to the premiere of a new action movie starring Rod Tango.
63 Nightmare on Wilson Way October 12, 2007 (2007-10-12) (stereoscopic 3-D);
October 20, 2007 (2-D)
(Halloween special). Bloo tries the old peanut brittle can filled with snakes trick, thinking it as the ultimate Halloween prank after strapping Mac to his bed, thus not allowing him to go trick-or-treating because of his regular sugar rushes. However, when Mr. Herriman tries it, Bloo thinks it has gone awry, and Herriman becomes a zombie, with the others becoming the undead later on through the episode.
64 Better Off Ed October 19, 2007 (2007-10-19) 511
Eduardo tells some little white lies to the nursery residents of Foster's, and now has to cover his tracks so they can't catch up to him.
65 The Little Peas November 22, 2007 (2007-11-22) 512
This episode tells the story of "The Big Cheese" through the eyes of a pint-sized imaginary friend named Peas, detailing how he helped Frankie turn a negative into a positive.
66 Let Your Hare Down March 6, 2008 (2008-03-06) 513
A plan to have Mr. Herriman mellow out backfires as conditions at the home deteriorate.

Season 6 : 2008-2009

This season includes a 1-hour special titled "Destination Imagination" and the series finale episode, "Goodbye to Bloo." The intro was shortened for Season 6, too.

# Episodes Airdate Prod. Code
67 Jackie Khones and the Case of the Overdue Library Crook March 13, 2008 (2008-03-13) 601
Mac seeks the aid of Jackie Khones to find out who stole his library card and used it to check out a now over-due book.
68 Mondo Coco April 10, 2008 (2008-04-10) 602
Coco escapes from Foster's, and a chain of events has her on adventures all over the world.
69 Pranks for Nothing April 24, 2008 (2008-04-24) 603
A termite infestation at Foster's forces Mr. Herriman to move the Friends into a hotel for the night. While at the hotel, Bloo, being rambunctious, gets out of hand, disobeying all of Mr. Herriman's rules. To get rid of him, Wilt, Eduardo, and Coco play a prank on Bloo, though Mr. Herriman believes Bloo did it. Bloo, angry at Coco, challenges her to a prank war, turning the night into an outrageous chain of pranks. This is the only episode of Foster's Home for Imaginary Friends that Mac is absent in, making Bloo the only character to appear in every episode of Foster's Home for Imaginary Friends.
70 Bloo Tube May 8, 2008 (2008-05-08) 604
The friends have to make their own fun, when rain forces them to cancel a trip to a water park. They decide to upload videos to ViewTube (a parody of YouTube), while Bloo, sulking because of their canceled trip, tries to ruin everyones' fun.
72-74 Destination Imagination November 27, 2008 (2008-11-27) 606-608
(90-minute movie) Frankie is sick and tired of working without being thanked. One day, a toy box is discovered at Foster's front door. Frankie is ordered to take it to the attic and leave it alone, but she knows there is an imaginary friend trapped inside, and opens the box to find it. When she looks inside, she falls into a strange imaginary world. There, she gets treated like a princess by a mysterious imaginary friend. After tackling certain bizarre toy box trials and tribulations, Bloo, Mac, Wilt, Eduardo, and Coco discover Frankie's whereabouts and set out to rescue her from this strange world. This is the first and only episode to have a TV-PG rating.
75 The Bloo Superdude and the Great Creator of Everything's Awesome Ceremony of Fun That He's Not Invited To February 22, 2009 (2009-02-22) (Europe);
May 3, 2009 (America)
In the sequel to "The Bloo Superdude and the Magic Potato of Power," our hero (Bloo) must set out on a quest if he wishes to attend a ceremony honoring The Great Creator of Everything (Mac). However, Bloo is sick and has hallucinations, making him think he's the Superdude when he's only running around the house. In real life a delirious Bloo is trying to get out of the house to get to Mac's birthday party which is outside.
76 Bad Dare Day February 28, 2009 (2009-02-28) (Europe and Asia) May 1, 2009 (America) 610
A little dare between Mac and Bloo turns into a huge daring competition between the house members once Madame Foster gets involved. Mac is dared to tell Frankie that he loves her (which is revealed in "Ticket to Rod" that he still does) by Bloo, which makes him really upset and give other friends insane dares. Mac also dares Bloo to burn all his paddle balls, which makes Bloo mad at Mac. In the finals, Mac is dared to pretend to be Bloo. Since Mac's mad, he mocks him. Bloo does the same, then they realize that they hurt each others' feelings and apologize. Bloo then tells Mac it's not a big deal that he told Frankie he loves her in front of everyone since the world already knows, because Bloo posted it on the Foster's blog (which makes Mac angry at Bloo again).
77 Read 'Em and Weep March 1, 2009 (2009-03-01) (Europe);
May 3, 2009 (America)
Bloo is sad about Eduardo getting adopted and holds auditions to get an alternate one; meanwhile, the residents get letters from those that were adopted in another Adopt-a-Thought Saturday.
78 Fools and Regulations May 3, 2009 (2009-05-03) 612
Frankie and Mr. Herriman are hosting an important party in the foyer to raise funds for the house, so Frankie tells Bloo, Wilt, Eduardo, and Coco to either stay upstairs or outside. After a series of ridiculous deciding, they choose to stay upstairs, but after being there for a while, they decide to go outside. Things are going well until Mac comes with video games and they realize they are stuck outside. the situation becomes chaotic as they try to get inside, and ruin things for Mr. Herriman and Frankie.
79 Goodbye to Bloo May 3, 2009 (2009-05-03) 613
The series finale. When Herriman tells Bloo that Mac is moving, Bloo decides to give him the best day ever, though things do not go as he plans. All day, Mac does things with everyone but Bloo, making him angrier after every disappointment. However to everyone's surprise/relief (and Mr. Herriman realizes he forgot to mention this), it turns out Mac is moving to an apartment (the one next door) that was held by Louise's family, and with Cheese unable to follow her because her new home doesn't allow imaginary friends, he moves into Foster's. This was Craig McCracken's final project before he stopped working at Cartoon Network.

Shorts 2006-2007

The following have appeared on the channel as filler during commercial breaks.

# Title Airdate Prod. Code
  Driving Miss Crazy June 9, 2006 (2006-06-09) S01
Frankie goes to a mechanic to find out about the bus, which had broken down, and everyone wants to come along, slowing her down.
  Neighborhood Wash July 7, 2006 (2006-07-07) S02
Mac and the other friends start a car wash to pay for a porcelain poodle that Bloo broke. To help, Bloo throws mud at every car that goes by to get more customers.
  Bad to the Phone December 8, 2006 (2006-12-08) S04
Bloo tries to make a good recording message for the Fosters Home phone, getting various others to help. Eventually, Bloo gets satisfied with one but Madame Foster plugs too many devices into the same outlet as the phone, fricassing the phone from the overload.
  Truth or Stare December 8, 2006 (2006-12-08) S05
Mac and Bloo have a staring contest and Eduardo tries to talk to them only to think they're frozen solid, consequently getting Frankie to tell him about it. More of the house's residents watch in a bet, as Mac seems to start losing his grip, only to recover it. It is revealed that Bloo was hiding behind a cardboard cut-out of himself.
  Cranks a Lot July 4, 2007 (2007-07-04) S06
Bloo tricks Mac into making crank calls to Mr. Herriman. Their joke is simply blowing raspberries into the phone, redialing again and again. Each time Herriman tries to get back at them by doing the same thing, it isn't them redialing, it's Frankie asking about groceries in the mall. The last call Herriman gets wasn't from Mac and Bloo or Frankie. It was from Madame Foster.
  A Chore Thing January 1, 2007 (2007-01-01) S07
Mr. Herriman tells Bloo to sort the trash for punishment because Bloo hosted a mud-wrestling tournament in the living room. Mac comes along and talks Bloo into pretending it is fun so that other people will want to do it. Soon, he has everybody doing it. Mac tries to tell him that it isn't fun after Bloo refuses to go do something else. He thinks everybody is gonna take the trash for themselves and tells them to get out. Then he realizes it isn't fun without the guys and walks away, until Mr. Herriman comes in and tells him to finish sorting the trash.
  Hide and Bloo Seek January 1, 2007 (2007-01-01) S08
Bloo is determined to win a game of Hide and Seek, so he hides in the trash. Things go awry when a few friends start playing "Kick the Trashbag."
  Badvertisement January 1, 2007 (2007-01-01) S09
Bloo makes a commercial for Fosters and ends up in trouble when a bunch of people show up because he told them that the first people there in 10 minutes get money and the Fosters bus.
  Give Pizza a Chance February 14, 2007 (2007-02-14) S010
Bloo leaves the fridge open after getting himself a snack, which leads to Frankie telling Wilt to order pizza. Bloo tells him to order five hundred pizzas, at the price of $6532.12. Frankie can't pay that much, so Bloo, Wilt and Ed stall Chris by sitting on him (because the pizza is free if it isn't there in 30 minutes).
  Drawing Bored July 4, 2007 (2007-07-04) S011
Eduardo tries to draw a story but Bloo, Wilt and Coco keep interrupting him, drawing their own additions to the story. Frankie interrupts them, revealing that they had been drawing on a wall in the house.
  Fistful of Cereal July 2, 2007 (2007-07-02) S012
Bloo tries getting a secret decoder ring from a cereal box. Mr. Herriman forbids him to get the toy without eating the cereal down to the ring. He then realizes that a secret decoder ring can decode his files on house residents and competes with Bloo in order to get the ring first.
  Petrified Pet July 1, 2007 (2007-07-01) S013
Bloo finds a strange rock digging in the yard and it is declared to be a fossil by Phineus B. Vurm, the bookworm imaginary friend. Bloo treats it as a pet until Frankie reveals it's actually petrified feces.
  Coconuts July 4, 2007 (2007-07-04) S014
Bloo tries to decipher a message from friends whose vocabulary has only one word each, like Coco. When he figures it out, he doesn't believe it until he realizes it is true.
  Pen Pal August 5, 2007 (2007-08-05) S015
Eduardo has a British penpal and Bloo is convinced that it's the Queen of England. He tries to make her his penpal instead by writing her a letter. Mac suggests to use Nancy, an English pen imaginary friend, but Bloo claims it'll make the letter "boring." Mac then suggests a care-package to make her really believe that Bloo cares. Bloo brings in a huge package, but it turns out the penpal was really Nancy. She claims the package is "boring" and she can only use it as a doorstop.
  Birthday Cake Bloos August 7, 2007 (2007-08-07) S017
It's Bloo's birthday, and his cake is being guarded by Mr. Herriman. After being refused to have his cake, Bloo leaves and Frankie comes in and sees Mr. Herriman sleeping on the job. She makes it look like he ate the cake in his sleep and leaves. Mr. Herriman soon wakes up and notices this and thinks he indeed ate the cake, at which point Frankie is yelling for Bloo to come into the kitchen, as they both enter, Frankie sees the cake is gone and scolds Bloo for it and threatens to kick him out. Feeling guilty, Mr. Herriman confesses that he ate the cake, on which both Frankie and Bloo begin to laugh, saying they pulled a prank on him and that the cake is just fine. When Frankie opens the refrigerator to show that the cake is fine, it actually is gone, having been taken by Madame Foster.
  Backpack Attack June 23, 2007 (2007-06-23) S018
Jackie Khones questions Bloo about Mac's backpack and Bloo becomes obsessed with finding out what's in it.
  Hair Today, Gone Tomorrow July 4, 2007 (2007-07-04) S019
Bloo ruins Mac's hair with gum the day before School Picture Day. Bloo tries to make it up to him but only makes matters worse.