Princess Marcuzan

Marilyn Hanold

Acting

Dr. Steele

James Karen

Acting

Dr. Nadir

Lou Cutell

Acting

Karen Grant

Nancy Marshall

Acting

General Bowens

David Kerman

Acting

Col. Frank Saunders / Frankenstein

Robert Reilly

Acting

Martian Crewmember (uncredited)

Robert Alan Browne

Acting

Reporter (uncredited)

Robert Fields

Acting

Martian Crewmember / The Monster (uncredited)

Bruce Glover

Acting