William Powell

Philo Vance

William 'Stage' Boyd

Harry Gray

Eugene Pallette

Sgt. Edward Heath

Paul Lukas

Adolph Mohler

Natalie Moorhead

Fanny Del Roy

Richard Tucker

Anthony Benson

May Beatty

Mrs. Paula Banning

E.H. Calvert

DA John F.X. Markham

Mischa Auer

Albert Brecker (uncredited)

Perry Ivins

Print Dealer (uncredited)

Charles McMurphy

Detective Burke (uncredited)

Guy Oliver

Captain Hagedorn (uncredited)

Dick Rush

Detective Welch (uncredited)

Otto Yamaoka

Sam (uncredited)