Dr. Victor Frankenstein

Robert Foxworth

Acting

Elizabeth Lavenza

Susan Strasberg

Acting

Monster

Bo Svenson

Acting

Agatha de Lacey

Heidi Vaughn

Acting

Alphonse Frankenstein

Philip Bourneuf

Acting

Henri Clerval

Robert Gentry

Acting

Charles de Lacey

Jon Lormer

Acting

Prof. Waldman

William Hansen

Acting

Otto Roget

John Karlen

Acting

Hugo

George Morgan

Acting

Felix de Lacey

Brian Avery

Acting

William Frankenstein

Willie Aames

Acting

Safie

Malila Saint Duval

Acting

Innkeeper

Edgar Daniels

Acting

Mayor

Edgar Justice

Acting

Man (uncredited)

Peter Sallis

Acting

Boy Who Runs from The Giant (uncredited)

Leif Garrett

Acting

The Giant's Mate (uncredited)

Rosella Olsen

Acting