Boo Boo Bear as Caillou
Floral Rugg as Rosie
Cindy Bear as Doris (Mommy)
Yogi Bear as Boris (Daddy)
Maw Rugg as Grandma
Paw Rugg as Grandpa
Penelope Pitstop as Mrs. Martin
Ogee as Clementine
Augie Doggy as Leo
Shag as Xavier
Pixie and Dixie as Jason and Jefferey
Magilla Gorilla as Mr. Washington
Snagglepuss as The Doctor