Phantom of the Rue Morgue

Karl Malden

Dr. Marais

Claude Dauphin

Insp. Bonnard

Patricia Medina

Jeanette

Steve Forrest

Prof. Paul Dupin

Allyn Ann McLerie

Yvonne (as Allyn McLerie)

Anthony Caruso

Jacques the One-Eyed

Veola Vonn

Arlette

Dolores Dorn

Camille

Merv Griffin

Georges Brevert

Paul Richards

Rene the Knife-thrower

Rolfe Sedan

LeBon (as Rolphe Sedan)

Erin O'Brien-Moore

Wardrobe Woman

Henry Kulky

Maurice

Abdullah Abbas

Show Spectator (uncredited)

Rico Alaniz

Gendarme (uncredited)

Fred Aldrich

Barfly (uncredited)