Crime Mystery Thriller Action
In Puerto Rico to investigate a glut of contraband diamonds that are flooding the world's jewel market, Mr. Moto and his sidekick, a wrestler, find themselves involved in murders by thrown daggers, the frame-up of an overstressed Army colonel, and a pirate gang led by an unknown boss who has inside knowledge of the ensuing investigation.
Directed by
Herbert I. Leeds
Peter Lorre
Kentaro Moto
Charles D. Brown
Capt. Thomas Castle
Leon Ames
Commissioner Madero
Paul Harvey
Gov. John Bentley
Robert Lowery
Lt. George Bentley
Ward Bond
Sailor Sam - Wrestler
Edwin Stanley
Doctor at Hospital
Selmer Jackson
Doctor
Lee Shumway
Guard
Ray Walker
Real Ambulance Intern
Jean Hersholt
Mr. Sutter
Willie Best
Launch Pilot
Harold Goodwin
Ship Dispatch Officer
Eddie Marr
Capt. Dahlen
Jack Stoney
Henchman disguised as Ambulance Attendant
Neely Edwards
Moore - Governor's Aide
Richard Lane
Police Commissioner Gordon
Ralph Dunn
Cop with McGurk
Douglass Dumbrille
Comdr. La Costa
Donald Douglas
Ship's Officer - Fight Referee
Lester Dorr
Real Ambulance Intern
Grace Hayle
Mrs. Brown
George Magrill
Officer
Renie Riano
Librarian
Harry Strang
Henchman disguised as Ambulance Attendant
Harry Woods
Grant
Warren Hymer
Twister McGurk
Al Kikume
Sergeant holding McGurk at the Garage
Edward Keane
Washington Official
Amanda Duff
Joan Castle
Walter Deming
Drunk
Jimmie Dundee
Driver
Juan Duval
Carlos - Butler
Oscar 'Dutch' Hendrian
Sailor at Wrestling Match
Tony Martelli
Hotel Valet
Louis Mercier
Hotel Valet
Lucille Miller
Flirt at Dance
Gloria Roy
Nurse
Max Wagner
Sailor at Wrestling Match

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