Cast
Paul Lukas
Philo Vance
Donald Cook
Lynn Llewellyn
Arthur Byron
Richard Kinkaid
Leslie Fenton
Dr. Kane
Sidney Bracey
Waiter (unconfirmed) (uncredited)
Eric Blore
Currie
Lillian Elliott
Mrs. Marting (uncredited)
Milton Kibbee
Reporter (uncredited)
Louise Henry
Virginia Llewellyn
Rosalind Russell
Doris Reed
Wallis Clark
Dr. Elton (uncredited)
William Demarest
Auctioneer (uncredited)
Alison Skipworth
Priscilla Kinkaid Llewellyn
Purnell Pratt
District Attorney John Markham (as Purnell B. Pratt)
Leo G. Carroll
Smith (as Leo Carroll)
Isabel Jewell
Amelia Llewellyn
Ernie Adams
Husband of Fat Lady at Auction (uncredited)
Brooks Benedict
Casino Patron (uncredited)
Pat Flaherty
Watchman (uncredited)
Keye Luke
Taki - Casino Pageboy (uncredited)
Miki Morita
Japanese Casino Waiter (uncredited)
Bert Moorhouse
Casino Patron (uncredited)
Frank Reicher
Assistant Coroner (uncredited)
Ted Healy
Police Sergeant Ernest Heath
Louise Fazenda
Becky
Grace Hayle
Fat Lady at Auction (uncredited)
Charles Sellon
Dr. Doremus
Jay Eaton
Auction Floorman (uncredited)
Alphonse Martell
Roulette Croupier (uncredited)