Multiverse/Sesame Street

Cast

 * Bear (from Bear in the Big Blue House) as Big Bird
 * Homestar Runner (from Homestar Runner) as Elmo
 * Swiper (from Dora the Explorer) as Oscar the Grouch
 * Mike Wazowski (from Monsters, Inc.) as Bert
 * Sulley (from Monsters, Inc.) as Ernie
 * Richard Watterson (from The Amazing World of Gumball) as Cookie Monster
 * Olie Polie (from Rolie Polie Olie) as Grover
 * Emily (from Little Bear) as Prairie Dawn
 * Dracula (from Hotel Translyvania) as Count von Count
 * Maggie (from Maggie and the Ferocious Beast) as Zoe
 * Sofia (from Sofia the First) as Rosita
 * Barney (from Barney and Friends) as Telly Monster
 * Koda (from Brother Bear) as Baby Bear
 * Doc McStuffins (from Doc McStuffins) as Abby Cadabby
 * Snook (from It's a Big Big World) as Snuffy
 * Golias (from My Big Big Friend) as Horatio the Elephant
 * Perry the Platypus (from Phineas and Ferb) as Slimey the Worm
 * Big Mouth (from Peg + Cat) as Herry Monster
 * Dug (from Up) as Barkley
 * Lily Loud (from The Loud House) as Baby Natasha
 * Clover (from Sofia the First) as Hoots the Owl
 * Dr. Teeth (from The Muppets) as Guy Smiley
 * Basil (from The Great Mouse Detective) as Sherlock Hemlock
 * Clueless Morgan (from Muppet Treasure Island) as Forgetful Jones
 * Olaf and Sven (from Frozen) as Two-Headed Monster
 * Nicholas Biscuit (from Pinky Dinky Doo) as The Amazing Mumford
 * Animal (from The Muppets) as Frazzle
 * Phineas Flynn (from Phineas and Ferb) as Biff
 * Ferb Fletcher (from Phineas and Ferb) as Sully
 * Sid (from Sid the Science Kid) as Murray Monster
 * Rainbow Dash (from My Little Pony: Friendship is Magic) as Gladys the Cow
 * Eeyore (from Winnie the Pooh) as Buster the Horse
 * Peg (from Peg + Cat) as Lulu
 * Rabbit (from Skunk Fu!) as Benny Rabbit
 * Gloomius Maximus (from Rolie Polie Olie) as The Big Bad Wolf
 * Connor, Greg and Amaya (from PJ Masks) as The Three Little Pigs
 * Iver, Groove, Tula, Hubba Hubba and Roma (from The Hoobs) as Honkers
 * Homsar (from Homestar Runner) as Dinger
 * Tuck and Roll (from A Bug's Life) as The Martians
 * Brother Bear (from The Berenstain Bears) as Little Bird
 * Stingy (from LazyTown) as Mr. Johnson
 * Princess Ivy (from Sofia the First) as Grundgetta
 * Yogi Bear (from Yogi Bear) as Papa Bear
 * Cindy Bear (from Yogi Bear) as Mama Bear
 * Ojo (from Bear in the Big Blue House) as Curly Bear
 * Lambie (from Doc McStuffins) as Ovejita
 * Pingu (from Pingu) as Stinky the Stinkweed
 * June (from Little Einsteins) as Googel
 * Annie (from Little Einsteins) as Phoebe
 * Leo (from Little Einsteins) as Narf
 * Quincy (from Little Einsteins) as Mel
 * Eddy (from Ed, Edd 'n' Eddy) as Little Chrissy
 * Ed and Edd (from Ed, Edd 'n' Eddy) as The Alphabeats
 * Greg (from The Wiggles) as Little Jerry
 * Jeff (from The Wiggles) as Big Jeffy
 * Murray (from The Wiggles) as Chrissy
 * Anthony (from The Wiggles) as Rockin' Richard
 * Big Bear (from Everything's Rosie) as Maurice Monster
 * Raj (from Camp Lazlo) as Harvey Monster
 * Leon (from The Puzzle Place) as Kingston Livingston III
 * Lynn Loud, Sr. (from The Loud House) as Humphrey
 * Rita Loud (from The Loud House) as Ingrid
 * The Giant (from Eureeka's Castle) as Bruno the Trashman
 * Madame Foster (from Foster's Home for Imaginary Friends) as Sherry Netherland
 * Little Miss Sunshine (from The Mr. Men Show) as Merry Monster
 * Kion (from The Lion Guard) as Chicago the Lion
 * Salty the Seal (from Mickey Mouse Clubhouse) as Wolfgang the Seal
 * Isabella Garcia-Shapiro (from Phineas and Ferb) as Roxie Marie
 * Pig (from Peg + Cat) as Placido Flamingo
 * Chunk Squarey (from Rolie Polie Olie) as Jackman Wolf
 * Fozzie Bear (from The Muppets) as Harvey Kneeslapper
 * Phoebe Terese (from The Magic School Bus) as Deena
 * Katie (from PAW Patrol) as Pearl
 * Skully (from Jake and the Never Land Pirates) as Poco Loco
 * Miss Nettle (from Sofia the First) as Miss Finch
 * Queen Martha (from Mike the Knight) as Madame Chairbird
 * Homer Simpson (from The Simpsons) as Daddy Dodo
 * Marge Simpson (from The Simpsons) as Mommy Dodo
 * Bart Simpson (from The Simpsons) as Donnie Dodo
 * Lisa Simpson (from The Simpsons) as Marie Dodo
 * The Jellybean Team (from Maggie and the Ferocious Beast) as Board of Birds
 * Piglet (from Winnie the Pooh) as Bug
 * Princess Amber (from Sofia the First) as Grizzy
 * Gonzo (from The Muppets) as Stuckweed
 * Gil, Molly, Goby, Deema, Oona and Nonny (from Bubble Guppies) as Pesties
 * Mad Monty (from Muppet Treasure Island) as Grouch Mayor
 * Donkey (from Shrek) as Iago the Donkey
 * Cranston the Goat (from Cats Don't Dance) as Lassie the Goat
 * Rowlf the Dog (from The Muppets) as Don Music
 * Tigger (from Winnie the Pooh) as Leo the Party Monster
 * Stanley Griff (from Stanley) as Roosevelt Franklin
 * Joyce Griff (from Stanley) as Roosevelt Franklin's Mother
 * Ooh and Aah (from Ooh, Aah and You) as Joey and Davey Monkey
 * Hazel Charming, Posie and Lavender (from Little Charmers) as The Oinker Sisters
 * Blossom, Bubbles and Buttercup (from The Powerpuff Girls) as The Squirrelles