Bob Newhart
Bernard (voice)
Bob Newhart
Bernard (voice)
Eva Gabor
Miss Bianca (voice)
Geraldine Page
Madame Medusa (voice)
Joe Flynn
Mr. Snoops (voice)
Jeanette Nolan
Ellie Mae (voice)
Pat Buttram
Luke (voice)
Jim Jordan
Orville (voice)
John McIntire
Rufus (voice)
Michelle Stacy
Penny (voice)
Bernard Fox
The Chairman (voice)
Larry Clemmons
Gramps (voice)
James MacDonald
Evinrude / Brutus / Nero (voice)
George Lindsey
Rabbit (voice)
Bill McMillian
TV Announcer (voice)
Dub Taylor
Digger (voice)
John Fiedler
Owl (voice)
Robie Lester
Miss Bianca (singing voice, uncredited)
Peter Renaday
American Deligate (voice) (uncredited)
Margery Sharp
Novel
Ken Anderson
Author
Larry Clemmons
Author
Art Stevens
Director
James Koford
Editor
John Lounsbery
Director
Wolfgang Reitherman
Director
Vance Gerry
Author
James Melton
Editor
Frank Thomas
Author
Ron Miller
Executive Producer
Burny Mattinson
Author
Dick Sebast
Author
Wolfgang Reitherman
Producer
Artie Butler
Original Music Composer
Ted Berman
Author
David Michener
Author
Fred Lucky
Author
Herb Taylor
Sound Supervisor
Frank Thomas
Animation
Milt Kahl
Animation
Ollie Johnston
Animation
Carol Connors
Songs
Ayn Robbins
Songs
Sammy Fain
Songs
Don Bluth
Animation Director