Edmund Lowe

Philo Vance

Virginia Bruce

Zalia Graem

Benita Hume

Nurse Gladys Beeton

Douglas Walton

Floyd Garden

Nat Pendleton

Sergeant Ernest Heath

Gene Lockhart

Edgar Lowe Hammle

H.B. Warner

Major Fenwicke-Ralston

Kent Smith

Woode Swift

Grant Mitchell

District Attorney Markham

Frieda Inescort

Mrs. Madge Fenwicke-Ralston

Henry B. Walthall

Dr. Garden

Jessie Ralph

Mrs. Hammle

Charles Trowbridge

Inspector Colby

Etienne Girardot

Dr. Doremus

William Austin

Sneed, Hammle's Butler (Uncredited)

Edwin L. Marin