Cast
Robert Foxworth
Dr. Victor Frankenstein
Heidi Vaughn
Agatha de Lacey
Philip Bourneuf
Alphonse Frankenstein
Leif Garrett
Boy Who Runs from The Giant (uncredited)
George Morgan
Hugo
Robert Gentry
Henri Clerval
John Karlen
Otto Roget
Willie Aames
William Frankenstein
Susan Strasberg
Elizabeth Lavenza
Bo Svenson
Monster
Jon Lormer
Charles de Lacey
William Hansen
Prof. Waldman
Brian Avery
Felix de Lacey
Peter Sallis
Man (uncredited)