Robert Foxworth
Dr. Victor Frankenstein
Acting
Susan Strasberg
Elizabeth Lavenza
Acting
Bo Svenson
Monster
Acting
Heidi Vaughn
Agatha de Lacey
Acting
Philip Bourneuf
Alphonse Frankenstein
Acting
Robert Gentry
Henri Clerval
Acting
Jon Lormer
Charles de Lacey
Acting
William Hansen
Prof. Waldman
Acting
John Karlen
Otto Roget
Acting
George Morgan
Hugo
Acting
Brian Avery
Felix de Lacey
Acting
Willie Aames
William Frankenstein
Acting
Malila Saint Duval
Safie
Acting
Edgar Daniels
Innkeeper
Acting
Edgar Justice
Mayor
Acting
Peter Sallis
Man (uncredited)
Acting
Leif Garrett
Boy Who Runs from The Giant (uncredited)
Acting
Rosella Olsen
The Giant's Mate (uncredited)
Acting