Top cast
Ami Foster
Kristi (voice)
Danny Cooksey
Crown Prince Bu (voice)
Vincent Price
King Ulvik (Right Head) / Kristi and Sonja's Father (voice)
Jonathan Winters
King Ulvik (Left Head) (voice)
Don Knotts
Professor Nidaros (voice)
Cloris Leachman
Queen Sirena (voice)
Charlie Adler
Stav (voice)
Michael Bell
Ribo / Krill (voice)
William Christopher
Bjørn (voice)
Laurie Faso
Prince Borch (Left Head) (voice)
Christina Lange
Sonja (voice)
Rob Paulsen
Prince Borch (Right Head) (voice)
Neil Ross
Prince Prag (Right Head) (voice)
B.J. Ward
Bjørn's Wife (voice)
Frank Welker
Prince Prag (Left Head) (voice)
Alvy Dorman
Malfred (voice)
Directed by
Ray Patterson
Written by
Shirley Hartman, Clifford Campion
