Joseph Cotten

as Baron Frankenstein

Rosalba Neri

as Tania Frankenstein

Paul Müller

as Dr. Charles Marshall

Herbert Fux

as Tom Lynch

Renate Kasché

as Julia Black

Mickey Hargitay

as Captain Harris

Lorenzo Terzon

as Harris' assistant

Andrea Aureli

as Jim Turner

Ada Pometti

as Sara Willis

Joshua Sinclair

as John

Richard Beardley

as Simon Burke

Petar Martinovitch

as Jack Morgan

Herb Andress

as Hunchback

Marino Masé

as Thomas Stack (as Peter Whiteman)

Adam Welles

as Child

Riccardo Pizzuti

as The Creature

Romano Puppo

as Zack