Cast
Charles Trowbridge
Inspector Colby
William Austin
Sneed, Hammle's Butler (Uncredited)
Don Brodie
Messenger (Uncredited)
Olaf Hytten
Vance's Butler (Uncredited)
H.B. Warner
Major Fenwicke-Ralston
Jessie Ralph
Mrs. Hammle
Etienne Girardot
Dr. Doremus
Rosalind Ivan
Mrs. Jepson (Uncredited)
Wilbur Mack
Man Yelling at Race Track (Uncredited)
Lee Phelps
Bus Driver (Uncredited)
Edmund Lowe
Philo Vance
Benita Hume
Nurse Gladys Beeton
Douglas Walton
Floyd Garden
Gene Lockhart
Edgar Lowe Hammle
Kent Smith
Woode Swift
Grant Mitchell
District Attorney Markham
Fred Kelsey
Heath's Assistant (Uncredited)
Dorothy Vernon
Woman Running for Bus (Uncredited)
Nat Pendleton
Sergeant Ernest Heath
Henry B. Walthall
Dr. Garden
Matty Roubert
Newsboy (Uncredited)
Duke York
Traffic Cop (Uncredited)
Virginia Bruce
Zalia Graem
Frieda Inescort
Mrs. Madge Fenwicke-Ralston