Mr. Wong in Chinatown

A pretty Chinese woman, seeking help from San Francisco detective James Lee Wong, is killed by a poisoned dart in his front hall, having time only to scrawl "Captain J" on a sheet of paper. She proves to be Princess Lin Hwa, on a secret military mission for Chinese forces fighting the Japanese invasion. Mr. Wong finds two captains with the intial J in the case, neither being quite what he seems; there's fog on the waterfront and someone still has that poison-dart gun...

• 
  William Nigh
• 
  W.B. Eason

• 
  Boris Karloff
  Mr. James Lee Wong
• 
  Marjorie Reynolds
  Roberta 'Bobbie' Logan
• 
  Grant Withers
  Police Capt. Bill Street
• 
  Huntley Gordon
  Mr. Davidson
• 
  George Lynn
  Capt. Guy Jackson
• 
  William Royle
  Capt. Jaime
• 
  James Flavin
  Police Sgt. Jerry
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  Lotus Long
  Princess Lin Hwa
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  Lee Tung Foo
  Willie
• 
  Bessie Loo
  Lilly May
• 
  Ernie Stanton
  Bailey
• 
  I. Stanford Jolley
  Palisser Hotel Clerk
• 
  Jack Kennedy
  Sgt. Brady
• 
  Donald Kerr
  Taxi Driver
• 
  Wilbur Mack
  The Coroner
• 
  Moy Ming
  Aged Tong Member
• 
  Bruce Mitchell
  Police Officer at Explosion
• 
  Angelo Rossitto
  Mute Dwarf
• 
  Guy Usher
  Police Commissioner
• 
  Richard Loo
  Tong Chief