Calificación
Reparto

Basil Rathbone
Dr. George Sebastian / Dr. Langamann

Ellen Drew
Linda Booth

John Howard
Gil Sawyer

Barbara Jo Allen
Louise Watkins (as Barbara Allen [Vera Vague])

Ralph Morgan
Dr. Charles Downer

Martin Kosleck
Maurice Gretz

Kitty Kelly
Winnie

Hugh O'Connell
Lawrence Watkins

Henry Victor
Furber (Uncredited)

Wanda McKay
Girl at Charity Bazaar (Uncredited)

James Seay
Intern (Uncredited)

William Benedict
Mickey Barnes (Uncredited)

George Chandler
Elevator Operator (Uncredited)

Edward Earle
Librarian (Uncredited)

Chuck Hamilton
Police Officer at Train Station (Uncredited)

Harry Hayden
Ticket Clerk (Uncredited)