- Edmund Lowe
- Philo Vance
- Virginia Bruce
- Zalia Graem
- Benita Hume
- Nurse Gladys Beeton
- Douglas Walton
- Floyd Garden
- Nat Pendleton
- Police Sgt. 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. 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
- Don Brodie
- Messenger
- Olaf Hytten
- Vance's Butler
- Rosalind Ivan
- Mrs. Jepson - Hammle's Housekeeper
- Fred Kelsey
- Heath's Assistant
- Wilbur Mack
- Man Yelling at Race Track
- Lee Phelps
- Bus Driver
- Alexander Pollard
- Waiter at Race Track
- Jack Roper
- Servant Eating Caviar
- Matty Roubert
- Newsboy
- Dorothy Vernon
- Woman Running for Bus
- Duke York
- Traffic Cop
