The Return of Doctor X › Cast
Wayne Morris
Walter "Wichita" Garrett
Humphrey Bogart
Dr. Maurice Xavier, aka Marshall Quesne
Rosemary Lane
Joan Vance
Dennis Morgan
Dr. Mike Rhodes
John Litel
Dr. Francis Flegg
Lya Lys
Angela Merrova
Huntz Hall
Pinky
Charles C. Wilson
Detective Roy Kincaid
Vera Lewis
Miss Sweetman
Howard Hickman
Chairman
Olin Howland
Undertaker
Arthur Aylesworth
Guide
Jack Mower
Policeman Guarding Rodgers' Room (uncredited)