Philo Vance

Hilda Lake

Markham

Ryan

Doris Delafield

Tom McDonald

Philip Wrede

Gamble

Dr. Doremus - Coroner

Eduardo Grassi

Du Bois - Fingerprint Man

Hennessey - Markham's Assistant

Archer Coe

Brisbane Coe

Ling Toy

MacTavish (uncredited)

First Reporter (uncredited)

Hans Snauble (uncredited)

Austrian Judge (uncredited)

Capt. Lugo (uncredited)

Sorrento Sailor (uncredited)

2nd Photographer (uncredited)

Train Porter Asked to Send Telegram (uncredited)

Markham's Secretary (uncredited)

Austrian Sergeant (uncredited)

Coroner's Assistant (uncredited)

Third Reporter (uncredited)

Hertz (uncredited)

Clerk at Hotel Nino in Chicago (uncredited)

Charles (uncredited)

Avery (uncredited)

Mrs. Fritz Snauble (uncredited)

Aeronautics Department Sentry (uncredited)

Doorman (uncredited)

Steamship Clerk (uncredited)

4h Reporter (uncredited)

Investigator Snitken (uncredited)

Nazi Officer at Dock (uncredited)

2nd Reporter (uncredited)

1st Photographer (uncredited)

Long-Distance Operator (uncredited)

Austrian Lieutenant (uncredited)

Camera

Editing

Editing

Art

Costume & Make-Up

Sound

Directing

Writing

Writing