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
Ward Bond
Sailor Sam - Wrestler
Peter Lorre
Kentaro Moto
Robert Lowery
Lt. George Bentley
Eddie Marr
Capt. Dahlen
Charles D. Brown
Capt. Thomas Castle
Paul Harvey
Gov. John Bentley
Jean Hersholt
Mr. Sutter
Richard Lane
Police Commissioner Gordon
Lester Dorr
Real Ambulance Intern
Donald Douglas
Ship's Officer - Fight Referee
Douglass Dumbrille
Comdr. La Costa
Ray Walker
Real Ambulance Intern
Leon Ames
Commissioner Madero
Ralph Dunn
Cop with McGurk
Harold Goodwin
Ship Dispatch Officer
Harry Woods
Grant
Willie Best
Launch Pilot
Max Wagner
Sailor at Wrestling Match
Grace Hayle
Mrs. Brown
George Magrill
Officer
Edward Keane
Washington Official
Harry Strang
Henchman disguised as Ambulance Attendant
Warren Hymer
Twister McGurk
Renie Riano
Librarian
Al Kikume
Sergeant holding McGurk at the Garage
Selmer Jackson
Doctor
Edwin Stanley
Doctor at Hospital
Lee Shumway
Guard
Amanda Duff
Joan Castle
Neely Edwards
Moore - Governor's Aide
Lucille Miller
Flirt at Dance
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
Gloria Roy
Nurse
Jack Stoney
Henchman disguised as Ambulance Attendant

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