Treehouse TV/Sesame Street Season 19

Cast

 * Flutter (from Mike the Knight) as Alice Snuffleupagus
 * Mr. Grouper (from Bubble Guppies) as The Amazing Mumford
 * Franklin, Rabbit, Fox, Bear, Goose, Snail, Beaver, Mr. Owl, Harriet, Mr. Turtle, Mrs. Turtle, Aunt Teeny Turtle and Officer Rabbit (from Franklin and Friends) as Anything Muppets
 * Rosie (from Caillou) as Baby Natasha
 * Duggee (from Hey Duggee!) as Barkley
 * Pablo (from The Backyardigans) as Bert
 * The Cat in the Hat (from The Cat in the Hat Knows a Lot About That!) as Big Bird
 * Pedro Pony (from Peppa Pig) as Buster the Horse
 * Benny the Bull (from Dora the Explorer) as Cookie Monster
 * Captain Barnacles (from The Octonauts) as Count von Count
 * Boots (from Dora the Explorer) as Elmo
 * Tyrone (from The Backyardigans) as Ernie
 * Rainbow Dash (from My Little Pony: Friendship is Magic) as Gladys the Cow
 * Spike (from My Little Pony: Friendship is Magic) as Grover
 * Princess Luna (from My Little Pony: Friendship is Magic) as Grundgetta
 * Big Mouth (from Peg + Cat) as Herry Monster
 * Tony (from Dinopaws) as Mr. Honker
 * Taury, Pterence, Trike, Sid, Steggy and Patsy (from Harry and His Bucket Full of Dinosaurs) as Honkers
 * Peso (from The Octonauts) as Hoots the Owl
 * Doris (from Caillou) as Juliet
 * Big Bird (from Sesame Street) as Kermit the Frog
 * Toopy and Binoo (from Toopy and Binoo) as The Martians
 * Fluttershy (from My Little Pony: Friendship is Magic) as Meryl Sheep
 * Professor Inkling (from The Octonauts) as Dr. Nobel Price
 * Twilight Sparkle, Pinkie Pie and Applejack (from My Little Pony: Friendship is Magic) as The Oinker Sisters
 * Swiper (from Dora the Explorer) as Oscar the Grouch
 * Peppa Pig (from Peppa Pig) as Ruby
 * Sparkie (from Mike the Knight) as Snuffy
 * Richard (from Peg + Cat) as Telly Monster
 * Thing One and Thing Two (from The Cat in the Hat Knows a Lot About That!) as Two-Headed Monster
 * Mr. Charming (from Little Charmers) as Gordon
 * Mrs. Charming (from Little Charmers) as Susan
 * Dora (from Dora the Explorer) as Maria
 * Diego (from Dora the Explorer) as Luis
 * Marina (from The Fresh Beat Band) as Linda
 * Twist (from The Fresh Beat Band) as Bob
 * Gil (from Bubble Guppies) as David
 * Wally Trollman (from Wallykazam!) as Uncle Wally
 * Hazel Charming (from Little Charmers) as Olivia
 * Sally (from The Cat in the Hat Knows a Lot About That!) as Gina
 * Parsley (from Little Charmers) as Miles
 * Nonny (from Bubble Guppies) as Mr. Macintosh