- Frank Buck
- Frank Hardy
- Sasha Siemel
- Tiger Van Dorn
- Reginald Denny
- Ralph Marshall
- Esther Ralston
- Valarie Shields
- Charlotte Henry
- Dorothy Elliott
- William Bakewell
- Tom Branning
- Clarence Muse
- Lightin'
- LeRoy Mason
- Jim Murphy
- Matthew Betz
- Inspector Starrett
- Richard Tucker
- Robert Branning
- Duncan Renaldo
- Armand Roget
- Sherwood Bailey
- Paul Marshall
- Willie Fung
- Chang
- 'Snub' Pollard
- Campbell
- George Rosener
- The 'Professor'
- Gertrude Sutton
- Mrs. Maitland
- John St. Polis
- Chandler Elliott
- John Davidson
- Dr. Coleman
- Dirk Thane
- Joe Nolan
- Robert Warwick
- Chief Inspector Angus McCloud
- Milburn Morante
- Henchman Joe
