Bob Newhart

as Bernard (voice)

Eva Gabor

as Miss Bianca (voice)

Geraldine Page

as Madame Medusa (voice)

Joe Flynn

as Mr. Snoops (voice)

Jeanette Nolan

as Ellie Mae (voice)

Pat Buttram

as Luke (voice)

Jim Jordan

as Orville (voice)

John McIntire

as Rufus (voice)