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