As of July 2026, Foster's Home for Imaginary Friends Season 4 aired in 2006 with 13 episodes — streaming now on Foxtel Now. Full episode guide and where to watch below.
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Foster's Home for Imaginary Friends Season 4

2006 13 Episodes Kids · Animation ⭐ 8/10

If you are after a comedy that actually makes you laugh out loud, Foster's Home for Imaginary Friends Season 4 is available on and right now. The show says what it needs to say in a single season, no filler. 526 people have weighed in on TMDB, and the verdict leans heavily positive. Keith Ferguson is the obvious draw, but the whole ensemble earns its laughs. Put it on tonight and see for yourself.

Foster's Home for Imaginary Friends Season 4 arrived without much fanfare and built its audience the hard way — through word of mouth. Foster's Home for Imaginary Friends Season 4 gets the fundamentals right first, then finds room to get weird with it. Season 4 of Foster's Home for Imaginary Friends includes 13 episodes. It aired from November 2005 to November 2006. This season stars Keith Ferguson, Sean Marquette and Grey DeLisle. Keith Ferguson and Sean Marquette lead a cast that brings real weight to the material. It was aired in 2006. Foster's Home for Imaginary Friends Season 4 earns its laughs from character rather than situation, which is why it does not wear thin the way pure farce tends to. It rarely drops the ball, and when it does, it recovers fast.

Foster's Home for Imaginary Friends Season 4 is the kind of thing you put on in the background and end up fully watching. It has built its own audience without needing a direct comparison. A contained run means every episode is doing real work. Keith Ferguson's comic timing carries it through its weaker moments. The kind of comedy you recommend to someone who claims they do not watch much.

📡 Where to Watch Foster's Home for Imaginary Friends Season 4

🇦🇺 Australia
🇬🇧 United Kingdom
🇨🇦 Canada
🇳🇿 New Zealand
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🎬 Foster's Home for Imaginary Friends Season 4 — Episode Guide

E1
Challenge of the Superfriends
2006-04-28
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 Nemesis, Imaginary Man's mortal enemy and sister.
E2
The Big Picture
2006-05-05
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 ...
E3
Squeeze the Day
2006-05-12
When the home's residents go 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.
E4
Neighbor Pains
2006-05-19
Old Man Rivers, who lives across the street from Foster's, does not want 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 himsel...
E5
Infernal Slumber
2006-07-17
Bloo, Wilt, Eduardo, and eventually more guests arrive at Mac's apartment for a slumber party that Mac didn't plan. But because they are all so loud, Mac's mom or Terrence could wake up and get them all into trouble.
E6
I Only Have Surprise for You
2006-07-27
Bloo, along with the rest of the house, plan a surprise party for Mac. However, Mac wants no part of it and tries to destroy their plans.
E7
Bus the Two of Us
2006-08-01
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.
E8
The Big Cheese
2006-08-07
Foster's is going to be 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 direc...
E9
Bloo's the Boss
2006-11-03
Bloo alerts 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 only...
E10
Emancipation Complication
2006-11-10
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...
E11
Good Wilt Hunting (1)
2006-11-23
It's time for the 5 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 fi...
E12
Good Wilt Hunting (2)
2006-11-23
Bloo and the gang are out to find Wilt and discover some interesting things about his secret past along the way.
E13
Make Believe it or Not
2005-11-17
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.

🎭 Cast of Foster's Home for Imaginary Friends Season 4

Keith Ferguson
Keith Ferguson
Bloo (voice)
Sean Marquette
Sean Marquette
Mac (voice)
Grey DeLisle
Grey DeLisle
Frankie / Duchess / Mac's mother / Goo (voice)
Phil LaMarr
Phil LaMarr
Wilt / Jackie Khones (voice)
Tom Kenny
Tom Kenny
Eduardo (voice)
Candi Milo
Candi Milo
Coco / Madame Foster / Cheese (voice)
Tom Kane
Tom Kane
Mr. Herriman (voice)

📋 All Seasons of Foster's Home for Imaginary Friends

Season 1Season 2Season 3Season 5Season 6

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