Peter Lorre

Mr. Moto

Joseph Schildkraut

Hendrik Manderson

Lionel Atwill

Prof. Roger Chauncey Hildebrand

Virginia Field

Eleanor Kirke

John 'Dusty' King

Howard Stevens

G.P. Huntley

Archie Featherstone

Victor Varconi

Paul Borodoff

John Bleifer

Wendling

Honorable Wu

Wong

Morgan Wallace

David Perez

Anthony Warde

Joe Rubla

Harry Strang

Museum Guard O'Hara

John Davidson

Prince Suleid

Carol Adams

Minor Role (uncredited)

Jimmy Aubrey

Bum (uncredited)

Brooks Benedict

Gangster (uncredited)

Willie Best

Driver (uncredited)

Stanley Blystone

Ship's Captain (uncredited)

George Chandler

Cameraman (uncredited)

Jack Rube Clifford

Sergeant on Motorcycle (uncredited)

Gino Corrado

Museum Exhibit Attendee (uncredited)

Lester Dorr

Reporter (uncredited)

Ralph Dunn

Police Guard (uncredited)

William Gould

Police Captain (uncredited)

Sam Hayes

Radio Announcer (uncredited)

Leyland Hodgson

Ship's Waiter (uncredited)

Sydney Jarvis

Museum Exhibit Attendee (uncredited)

Isabel La Mal

Matronly Woman (uncredited)

Hank Mann

Minor Role (uncredited)

Eric Mayne

Museum Exhibit Attendee (uncredited)

David Newell

Museum Exhibit Attendee (uncredited)

Pat O'Malley

Police Guard (uncredited)

Lee Phelps

Police Guard (uncredited)

Cyril Ring

Museum Exhibit Attendee (uncredited)

Iris Wong

Waitress (uncredited)

Victor Wong

Restaurant Proprietor (uncredited)