Lionel Barrymore

Professor Zelin

Elizabeth Allan

Irena Borotyn

Bela Lugosi

Count Mora

Lionel Atwill

Inspector Neumann

Jean Hersholt

Baron Otto

Henry Wadsworth

Fedor Vincente

Donald Meek

Dr. Doskil

Jessie Ralph

Midwife

Ivan F. Simpson

Jan

Franklyn Ardell

Chauffeur

Leila Bennett

Maria

June Gittelson

Annie

Carroll Borland

Luna

Holmes Herbert

Sir Karell Borotyn

Michael Visaroff

Innkeeper

Egon Brecher

Coroner (uncredited)

Robert Greig

Fat Man (uncredited)

John George

Gypsy (uncredited)

Louise Emmons

Old Gypsy Woman (uncredited)

Eily Malyon

Guy Bellis

James Bradbury Jr.

Rosemary Glosz

Tiny Jones

Jane Mercer

Torben Meyer

Patricia Reel

Christian Rub

Clare Verdera