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