Wayne Maunder
Mike Barrett
Marianne McAndrew
Maggie Russell
Jay C. Flippen
Luther Yerkes
Yvonne De Carlo
Constance Cumberland
John Carradine
Sean O'Flanagan
Harold J. Stone
Judge Upshaw
Yvonne D'Angers
Sheri Moore
Alexander D'Arcy
Christian Leroux
Berry Kroeger
Paul Van Fleet
Charles Napier
Officer Iverson
Shawn Devereaux
Yerkes' Girlfriend
John Lawrence
Howard Moore
Stuart Lancaster
Dr. Roger Trimble
Judith Baldwin
Fremont's Girlfriend
Uschi Digard
Woman with Gorilla (uncredited)
Sally Marr
Juror (uncredited)
Kay Peters
Olivia St. Clair
Richard Angarola
Father Sarfatti