William Powell
Nick Charles
Lucile Watson
Mrs. Marta Charles
Gloria DeHaven
Laura Belle Ronson
Helen Vinson
Helena Draque
Harry Davenport
Dr. Bertram Charles
Lloyd Corrigan
Dr. Bruce Clayworth
Donald MacBride
Police Chief MacGregor
Morris Ankrum
Willoughby Peavy
Joseph Crehan
Clancy - Policeman at Railroad Station (uncredited)
Tom Dugan
Studs Lonnegan (uncredited)
Wally Cassell
Bill Burns (uncredited)
Edward Gargan
Mickey Finnegan (uncredited)
Rex Evans
Fat Man in Train Passageway (uncredited)
Charles Halton
R.T. Tatum (uncredited)
Paul Langton
Tom Clayworth (uncredited)
Etta McDaniel
Ronson's Maid (uncredited)
Clarence Muse
Porter on Train (uncredited)
Robert Emmett O'Connor
Baggage Attendant on Train (uncredited)
Garry Owen
Pool Player (uncredited)
Jack Perry
Man in Pool Hall Brawl (uncredited)
William H. O'Brien
Train Passenger (uncredited)
Oliver Blake
Reporter (uncredited)
Tom Fadden
Train Passenger in Passageway (uncredited)
Sam Flint
Hotel Clerk (uncredited)
Harry Hayden
Train Conductor (uncredited)
Mitchell Lewis
Third Man Outside Barber Shop(uncredited)
