Michael Carr

as Dr. Frances B. Gröss

Samuel Berkowitz

as Samuel Berkowitz

Mary Ellen Brighton

as Suicide Victim

Thomas Noguchi

as Thomas Noguchi

John Alan Schwartz

as Leader of Flesh Eating Cult (uncredited)

Adolf Hitler

as Self (archive footage) (uncredited)

Benito Mussolini

as Self (archive footage) (uncredited)

Vern Stierman

as Narrator (voice)