Grandfather (voice)
Lorne Greene
Head Ratte (voice)
Sammy Davis Jr.
Fräulein Rottenmeier (voice)
Joan Gerber
Aunt Dete (voice)
Virginia Gregg
Tinette (voice)
Janet Waldo
Schnoddle/Hootie (voice)
Frank Welker
Mountain (voice)
Michael Winslow
Heidi (voice)
Margery Grey
Klara (voice)
Pamelyn Ferdin
Willie (voice)
Michael Bell
Gruffle (voice)
Peter Cullen
Peter (voice)
Roger DeWitt
Grimm (voice)
Richard Erdman
Sebastian (voice)
Fritz Feld
Herr Sessmann (voice)
Burr DeBenning
Director
Robert Taylor
Background Designer
Dennis Venizelos
Animation
Rick Maki