Cast[]
- Bugs Bunny (from Looney Tunes) as Big Bird
- Jimmy (from Ed, Edd 'n' Eddy) as Elmo
- Mojo Jojo (from The Powerpuff Girls) as Oscar the Grouch
- Fred Flintstone (from The Flintstones) as Bert
- Barney Rubble (from The Flintstones) as Ernie
- Yogi Bear (from Yogi Bear) as Cookie Monster
- Edd (from Ed, Edd 'n' Eddy) as Grover
- Nazz (from Ed, Edd 'n' Eddy) as Prairie Dawn
- Snagglepuss (from Yogi Bear) as Count von Count
- Dee-Dee (from Dexter's Laboratory) as Zoe
- Frankie Foster (from Foster's Home for Imaginary Friends) as Rosita
- Raj (from Camp Lazlo) as Telly Monster
- Boo-Boo Bear (from Yogi Bear) as Baby Bear
- Panini (from Chowder) as Abby Cadabby
- Gazpacho (from Chowder) as Snuffy
- Fred Fredburger (from The Grim Adventures of Billy and Mandy) as Horatio the Elephant
- Jerry (from Tom and Jerry) as Slimey the Worm
- Spike (from Tom and Jerry) as Herry Monster
- Scooby-Doo (from Scooby-Doo) as Barkley
- Pebbles Flintstone (from The Flintstones) as Baby Natasha
- Foghorn Leghorn (from Looney Tunes) as Hoots the Owl
- I.M. Weasel (from I Am Weasel) as Guy Smiley
- Mung Daal (from Chowder) as Sherlock Hemlock
- Ed (from Ed, Edd 'n' Eddy) as Forgetful Jones
- Gumball and Darwin (from The Amazing World of Gumball) as Two-Headed Monster
- Grim (from The Grim Adventures of Billy and Mandy) as The Amazing Mumford
- Taz (from Looney Tunes) as Frazzle
- Mordecai (from Regular Show) as Biff
- Rigby (from Regular Show) as Sully
- Tom (from Tom and Jerry) as Murray Monster
- Cow (from Cow and Chicken) as Gladys the Cow
- Quick Draw McGraw (from Yogi Bear) as Buster the Horse
- Sarah (from Ed, Edd 'n' Eddy) as Lulu
- Benson (from Regular Show) as Benny Rabbit
- Eduardo (from Foster's Home for Imaginary Friends) as The Big Bad Wolf
- Billy, Mandy and Irwin (from The Grim Adventures of Billy and Mandy) as The Three Little Pigs
- Echo Echo, Swampfire, Humongosaur and Jet Ray (from Ben 10: Alien Force) as Honkers
- Steven Universe (from Steven Universe) as Dinger
- Marvin the Martian and K-9 (from Looney Tunes) as The Martians
- Tweety (from Looney Tunes) as Little Bird
- Daffy Duck (from Looney Tunes) as Mr. Johnson
- Princess Morbucks (from The Powerpuff Girls) as Grundgetta
- Boskov (from Evil Con Carne) as Papa Bear
- Cindy Bear (from Yogi Bear) as Mama Bear
- Anais Watterson (from The Amazing World of Gumball) as Curly Bear
- Panini (from Chowder) as Ovejita
- Droopy (from Tom and Jerry) as Stinky the Stinkweed
- Numbuh 5 (from Codename: Kids Next Door) as Googel
- Numbuh 3 (from Codename: Kids Next Door) as Phoebe
- Numbuh 1 (from Codename: Kids Next Door) as Narf
- Numbuh 2 (from Codename: Kids Next Door) as Mel
- Grizzly (from We Bare Bears) as Little Chrissy
- Panda and Ice Bear (from We Bare Bears) as The Alphabeats
- Flapjack (from The Marvelous Misadventures of Flapjack) as Little Jerry
- Captain K'nuckles (from The Marvelous Misadventures of Flapjack) as Big Jeffy
- Pizza Steve (from Uncle Grandpa) as Chrissy
- Mr. Gus (from Uncle Grandpa) as Rockin' Richard
- Sylvester (from Looney Tunes) as Maurice Monster
- Banana Joe (from The Amazing World of Gumball) as Harvey Monster
- Kevin (from Ed, Edd 'n' Eddy) as Kingston Livingston III
- Hugh Test (from Johnny Test) as Humphrey
- Lila Test (from Johnny Test) as Ingrid
- Skips (from Regular Show) as Bruno the Trashman
- Muriel (from Courage the Cowardly Dog) as Sherry Netherland
- Penny Fitzgerald (from The Amazing World of Gumball) as Merry Monster
- Lion (from Steven Universe) as Chicago the Lion
- Courage (from Courage the Cowardly Dog) as Wolfgang the Seal
- Nina J. Neckerly (from Camp Lazlo) as Roxie Marie
- Roy Rooster (from Garfield and Friends) as Placido Flamingo
- Wilt (from Foster's Home for Imaginary Friends) as Jackman Wolf
- Cheese (from Foster's Home for Imaginary Friends) as Harvey Kneeslapper
- Goo (from Foster's Home for Imaginary Friends) as Deena
- Gladys (from The Grim Adventures of Billy and Mandy) as Pearl
- Chicken (from Cow and Chicken) as Poco Loco
- Eris (from The Grim Adventures of Billy and Mandy) as Miss Finch
- Madame Foster (from Foster's Home for Imaginary Friends) as Madame Chairbird
- Walter Bunny (from The Looney Tunes Show) as Daddy Dodo
- Patricia Bunny (from The Looney Tunes Show) as Mommy Dodo
- Richard Watterson (from The Amazing World of Gumball) as Donnie Dodo
- Lola Bunny (from The Looney Tunes Show) as Marie Dodo
- Robin, Beast Boy, Cyborg, Starfire and Raven (from Teen Titans) as Board of Birds
- Bloo (from Foster's Home for Imaginary Friends) as Bug
- Gretchen (from Camp Lazlo) as Grizzy
- Scrappy-Doo (from Scooby-Doo) as Stuckweed
- Squeak, Humphrey, Max and Biff (from The Garfield Show), Floyd (from Garfield and Friends) and Nibbles (from Tom and Jerry) as Pesties
- Mandark (from Dexter's Laboratory) as Grouch Mayor
- Shnitzel (from Chowder) as Iago the Donkey
- Victor (from Ed, Edd 'n' Eddy) as Lassie the Goat
- Jon Arbuckle (from The Garfield Show) as Don Music
- Johnny Bravo (from Johnny Bravo) as Leo the Party Monster
- Elroy Jetson (from The Jetsons) as Roosevelt Franklin
- Jane Jetson (from The Jetsons) as Roosevelt Franklin's Mother
- Johnny Test and Dukey (from Johnny Test) as Joey and Davey Monkey
- Josie, Valerie and Melody (from Josie and the Pussycats) as The Oinker Sisters
- Blossom, Bubbles and Buttercup (from The Powerpuff Girls) as The Squirrelles