Peter Lorre

Character: Mr. Moto

Joseph Schildkraut

Character: Hendrik Manderson

Lionel Atwill

Character: Prof. Roger Chauncey Hildebrand

Virginia Field

Character: Eleanor Kirke

John 'Dusty' King

Character: Howard Stevens

Iva Stewart

Character: Susan French

G.P. Huntley

Character: Archie Featherstone

Victor Varconi

Character: Paul Borodoff

John Bleifer

Character: Wendling

Honorable Wu

Character: Wong

Morgan Wallace

Character: David Perez

Anthony Warde

Character: Joe Rubla

Harry Strang

Character: Museum Guard O'Hara

John Davidson

Character: Prince Suleid

Eddie Abdo

Character: Arabian Officer (uncredited)

Carol Adams

Character: Minor Role (uncredited)

Jimmy Aubrey

Character: Bum (uncredited)

Brooks Benedict

Character: Gangster (uncredited)

Willie Best

Character: Driver (uncredited)

Stanley Blystone

Character: Ship's Captain (uncredited)

George Chandler

Character: Cameraman (uncredited)

Jack Rube Clifford

Character: Sergeant on Motorcycle (uncredited)

Chick Collins

Character: Driver of Armored Car (uncredited)

James Conaty

Character: Ship Passenger (uncredited)

Gino Corrado

Character: Museum Exhibit Attendee (uncredited)

Lester Dorr

Character: Reporter (uncredited)

Ralph Dunn

Character: Police Guard (uncredited)

Jack Gargan

Character: Museum Exhibit Attendee (uncredited)

William Gould

Character: Police Captain (uncredited)

Bobby Hale

Character: Steward (uncredited)

Sam Harris

Character: Professor (uncredited)

Sam Hayes

Character: Radio Announcer (uncredited)

Leyland Hodgson

Character: Ship's Waiter (uncredited)

Sydney Jarvis

Character: Museum Exhibit Attendee (uncredited)

Isabel La Mal

Character: Matronly Woman (uncredited)

Hank Mann

Character: Minor Role (uncredited)

Eric Mayne

Character: Museum Exhibit Attendee (uncredited)

Bert Moorhouse

Character: Reporter (uncredited)

David Newell

Character: Museum Exhibit Attendee (uncredited)

Tom O'Grady

Character: Husband (uncredited)

Pat O'Malley

Character: Police Guard (uncredited)

Lee Phelps

Character: Police Guard (uncredited)

Cyril Ring

Character: Museum Exhibit Attendee (uncredited)

Jay Ward

Character: Benny the Bellhop (uncredited)

Eric Wilton

Character: Archaeology Professor (uncredited)

Robert Winkler

Character: Boy on Ship (uncredited)

Beal Wong

Character: Chinese Restaurant Patron (uncredited)

Iris Wong

Character: Waitress (uncredited)

Jadin Wong

Character: Dancer (uncredited)

Victor Wong

Character: Restaurant Proprietor (uncredited)