O Mistério do Cassino

Paul Lukas

Philo Vance

Alison Skipworth

Priscilla Kinkaid Llewellyn

Donald Cook

Lynn Llewellyn

Rosalind Russell

Doris Reed

Arthur Byron

Richard Kinkaid

Ted Healy

Police Sergeant Ernest Heath

Eric Blore

Currie

Isabel Jewell

Amelia Llewellyn

Louise Fazenda

Becky

Purnell Pratt

District Attorney John Markham (as Purnell B. Pratt)

Leslie Fenton

Dr. Kane

Louise Henry

Virginia Llewellyn

Leo G. Carroll

Smith (as Leo Carroll)

Charles Sellon

Dr. Doremus

Ernie Adams

Husband of Fat Lady at Auction (uncredited)

Brooks Benedict

Casino Patron (uncredited)

Edna Bennett

Nurse to Lynn (uncredited)

Sidney Bracey

Waiter (unconfirmed) (uncredited)

Wallis Clark

Dr. Elton (uncredited)

William Demarest

Auctioneer (uncredited)