Barney/We're Back! A Dinosaur's Story

Barney as Rex (both Rex and Big)

BJ as Woog

Riff as Dweeb

Baby Bop as Elsa

Danny as Louie

Tosha as Cecilia

Filk (from A Bug's Life) as Vorb

Professor Albus Dumbledore (from Harry Potter) as Captain Neweyes

Professor Hinkle (from Frosty the Snowman) as Professor Screweyes

Mickey Mouse (from Disney) as Stubbs the Clown

Edna "E" Mode (from The Incredibles) as Dr. Bleeb

Arthur (from Arthur) as Buster

Arthur's Mother (from Arthur) as Buster's Mother

Arthur's Father (from Arthur) as Buster's Father

Buster, D.W., and Nemo (from Arthur and Finding Nemo) Buster's Siblings