Gregory Morton

as Carl Steiner

as Malchiel

as Conductor

as Dr. Rufus Schmidt (uncredited)

as Dr. Frazer

as Steadman

as Jordon

as Vince

as Dr. Granchard

as Jerry March

as Maestro Borov

as Dantino

as Dr. Hugo Granchard

as The Future-being Judge

as Defense Attorney Gage

as The Fiddler

as Antonio

as Monsieur de la Tremouille

as Older Lawyer

as Prof. Ainsley

as Canto of Quasti (voice)

as Alien Leader (voice) (uncredited)

as Dr. Paul Hogathy