Chan, in Paris for a reunion with friends from World War I, becomes involved in investigating the murder of a munitions manufacturer who was supplying arms to the enemy, even as the rising clouds of World War II force the city into nightly blackout status..
Charlie Chan
Sidney Toler
Police Inspector Marcel Spivak
Harold Huber
Antoine
Pedro de Cordoba
Marie Dubon
Lynn Bari
Tony Madero
Richard Clarke
Charlotte Ronnell
Dorothy Tree
Belescu
Noel Madison
Louis Santelle
Leo G. Carroll
Prefect of Police J. Romaine
C. Henry Gordon
Gentleman Max
Louis Mercier
Alex
George Davis
Lola
Barbara Leonard
B. Petroff (as Douglas Dumbrille)
Douglass Dumbrille
Hotel Proprietress
Adrienne D'Ambricourt
Baptiste
Harry Fleischmann
Pierre
Lon Chaney Jr.
Gendarme
Eugene Borden
Captain
Frederick Vogeding
Man wearing a robe in the hallway
André Cheron
Complainant at Police
Ann Codee
Travel Agency Manager
Albert Conti
Proprietor of Wine Cellar
Gino Corrado
Puppeteer
Jean De Briac
French Cabby
Jean Del Val
Minor Role
Fred Farrell
Officer
Constant Franke
Pilot
Arno Frey
Victor the Gypsy, gangland bistro patron (cameo extra)
John George
Minor Role
Helen Giere
Doctor
Paul Irving
French Girl
Jeanne Lafayette
Mechanic
Michael Mark
Gendarme
Alphonse Martell
Clerk
Alberto Morin
Telephone Operator
Nita Pike
Cabby
Albert Pollet
Gendarme at Steamship Office
Frank Puglia
Gendarme
Joseph Romantini
Hotel Clerk
Rolfe Sedan
Phillip
Tom Seidel
Market Man
Lester Sharpe
Plainclothesman
George Sorel
Man Leaving Paris
Larry Steers
Gendarme
Jacques Vanaire
French Girl
Veola Vonn
One of Petroff's Girlfriends
Poppy Wilde
Cabby
Marek Windheim