Lon Chaney Jr.

~ as ~

Dr. Mark Steel (as Lon Chaney)

Patricia Morison

~ as ~

Stella Madden

J. Carrol Naish

~ as ~

Inspector Gregg

David Bruce

~ as ~

Robert 'Bob' Duval

Ramsay Ames

~ as ~

Maria Steele

Fay Helm

~ as ~

Mrs. Duval

Holmes Herbert

~ as ~

Bryant, the Butler

Alec Craig

~ as ~

Bill, the Watchman

Frederick Giermann

~ as ~

Marion's Father (as Fred Gierman)

Lisa Golm

~ as ~

Marion's Mother