SpongeBob SquarePants/Sesame Street

Cast

 * SpongeBob SquarePants as Big Bird
 * Gary as Elmo
 * Sheldon J. Plankton as Oscar the Grouch
 * Squidward Tentacles as Bert
 * Mr. Krabs as Ernie
 * Patrick Star as Cookie Monster
 * Stanley S. SquarePants as Grover
 * Mrs. Puff as Prairie Dawn
 * Patchy the Pirate as Count von Count
 * Sandy Cheeks as Zoe
 * Pearl Krabs as Rosita
 * Tom as Telly Monster
 * Fred as Baby Bear
 * Princess Mindy as Abby Cadabby
 * Scooter as Snuffy
 * Dumbo (from Dumbo) as Horatio the Elephant
 * Wormy as Slimey the Worm
 * Larry the Lobster as Herry Monster
 * Spot (from Rolie Polie Olie) as Barkley
 * Butter Otter (from PB&J Otter) as Baby Natasha
 * Zoot (from The Muppets) as Hoots the Owl
 * Pablo (from The Backyardigans) as Guy Smiley
 * Mr. Scatterbrain (from Mr. Men) as Sherlock Hemlock
 * Papa Bear (from The Berenstain Bears) as Forgetful Jones
 * Chip and Dale (from Mickey Mouse) as Two-Headed Monster
 * Floyd Pepper (from The Muppets) as The Amazing Mumford
 * Dennis as Frazzle
 * Mermaid Man as Biff
 * Barnacle Boy as Sully
 * SpongeBob's Dad as Murray Monster
 * Pinky the Flamingo (from Beanie Babies) as Gladys the Cow
 * Legs the Frog (from Beanie Babies) as Buster the Horse
 * SpongeBob's Mom as Lulu
 * Rabbit (from Winnie the Pooh) as Benny Rabbit
 * The Flying Dutchman as The Big Bad Wolf
 * Linny, Tuck and Ming-Ming (from Wonder Pets) as The Three Little Pigs
 * Baby Kermit, Baby Piggy, Baby Fozzie, Baby Animal, Baby Scooter, Baby Skeeter, Baby Rowlf, Baby Gonzo, Baby Bunsen and Baby Beaker (from Muppet Babies) as Honkers
 * Winnie the Pooh (from Winnie the Pooh) as Dinger
 * Olaf and Sven (from Frozen) as The Martians
 * Sweetie Bird (from Tiny Toon Adventures) as Little Bird
 * Sam the Eagle (from The Muppets) as Mr. Johnson
 * Karen as Grundgetta
 * Marlin (from Finding Nemo) as Papa Bear
 * Dory (from Finding Nemo) as Mama Bear
 * Cleo (from Pinocchio) as Curly Bear
 * Suzy Sheep (from Peppa Pig) as Ovejita
 * Wembley Fraggle (from Fraggle Rock) as Stinky the Stinkweed
 * Uniqua (from The Backyardigans) as Googel
 * Tasha (from The Backyardigans) as Phoebe
 * Pablo (from The Backyardigans) as Narf
 * Tyrone (from The Backyardigans) as Mel