The Little Mermaid/Sesame Street

Cast

 * Ariel as Big Bird
 * Sofia (from Sofia the First) as Elmo
 * Eric as Zoe
 * Elena (from Elena of Avalor) as Rosita
 * James (from Sofia the First) as Abby Cadabby
 * Anna (from Frozen) as Ernie
 * Elsa (from Frozen) as Bert
 * Ursula as Oscar the Grouch
 * Ursula as Vanessa as Grungdetta
 * Marie (from The Aristocats) as Barkley
 * Joy (from Inside Out) as Gina
 * Belle (from Beauty and the Beast) as Telly
 * Merida (from Brave) as Baby Bear
 * Evil Queen (from Snow White) as Count Von Count
 * Snow White (from Snow White) as Grover
 * Tiana (from The Princess and the Frog) as Kermit the Frog
 * Pocahontas (from Pocahontas) as Herry Monster
 * Young Anna (from Frozen) as Ernestine
 * Ellie (from Ice Age franchise) as Snuffy
 * Alice (from Alice in Wonderland) as Alice Snuffleupagus
 * Old Hag (from Snow White) Cookie Monster
 * Rapunzel (from Tangled) as Prairie Dawn
 * Olaf (from Frozen) as Rubber Duckie
 * Snowgies (from Frozen Fever) as Bernice
 * Dory (from Finding Nemo) as Dorothy
 * Peaches (from Ice Age franchise) as Horatio the Elephant
 * Birdos (from Super Mario) as Honkers
 * Yoshi (from Super Mario) as Dinger
 * Jessie (from Toy Story 2) as Gladys the Cow
 * Amber (from Sofia the First) as Julia
 * Disgust (from Inside Out) as Cecille
 * Pinkie Pie (from MLP) as Harvey Kneeslapper
 * Tinker Bell (from Disney Fairies) as Merry Monster
 * Louis the Alligator (from The Princess and the Frog) as Hoots the Owl
 * Moana (from Moana) as Murray Monster
 * Isabel (from Elena of Avalor) as Ovejita
 * Honey Lemon (from Big Hero 6) as Betty Lou
 * Rosalina (from Super Mario) as The Amazing Mumford
 * Sandy Cheeks (from SpongeBob SquarePants) as Forgetful Jones
 * The Chipettes (from Alvin and the Chipmunks) as The Oinker Sisters
 * Sadness (from Inside Out) as Blue Johnson
 * Princess Peach (from Super Mario) as Biff
 * Princess Daisy (from Super Mario) as Sully
 * Smiler (from The Emoji Movie) as Guy Smiley
 * Judy Hopps (from Zootopia) as Humphrey
 * Fru Fru (from Zootopia) as Ingrid
 * Baby Piggy (from Muppet Babies) as Baby Natasha
 * Toadette (from Super Mario) as LuLu
 * Dot (from A Bugs Life) as Slimey
 * Rachel and Jennifer (from Ice Age franchise) as Two Headed Monster
 * Lola Loud (from The Loud House) as Frazzle
 * Applejack (from MLP) as Buster the Horse
 * Link Hogthrob (from Muppets) as Daddy Dodo
 * Miss Piggy (from Muppets) as Mommy Dodo
 * Dr. Julius Strangepork (from Muppets) as Donny Dodo
 * Annie Sue Pig (from Muppets) as Marie Dodo
 * Rosita (from Sing!) as Mrs Finch
 * Wendy O. Koopa (from Super Mario) as Huxley
 * Po (from Teletubbies) as Mooba/Googel
 * Laa Laa (from Teletubbies) as Groogel/Phoebe
 * Minnie Mouse (from Mickey Mouse) as Narf
 * Daisy Duck (from Mickey Mouse) as Mel