"Two agents of the mouse-run International Rescue Aid Society search for a little orphan girl kidnapped by sinister treasure hunters."
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)
Michelle Stacy
as Penny (voice)
Bernard Fox
as The Chairman (voice)
Larry Clemmons
as Gramps (voice)
James MacDonald
as Evinrude / Brutus / Nero (voice)
George Lindsey
as Rabbit (voice)
Bill McMillian
as TV Announcer (voice)
Dub Taylor
as Digger (voice)
John Fiedler
as Owl (voice)
Robie Lester
as Miss Bianca (singing voice, uncredited)
Peter Renaday
as American Deligate (voice) (uncredited)
Margery Sharp
Novel
Ken Anderson
Author
Art Stevens
Director
James Koford
Editor
John Lounsbery
Wolfgang Reitherman
Vance Gerry
James Melton
Frank Thomas
Ron Miller
Executive Producer
Burny Mattinson
Dick Sebast
Producer
Artie Butler
Original Music Composer
Ted Berman
David Michener
Fred Lucky
Herb Taylor
Sound Supervisor
Animation
Milt Kahl
Ollie Johnston
Carol Connors
Songs
Ayn Robbins
Sammy Fain
Don Bluth
Animation Director
Sylvia Roemer
Layout
Daniela Bielecka
Background Designer
Angie Prindle