Cast
- Edmund Lowe as Inspector Dyke
- Ralph Forbes as William Luke-Patson
- Shirley Grey as Beatrice Jones aka Sonia Smeganoff
- Hedda Hopper as Lady Daniels
- Onslow Stevens as John Hawley
- Jameson Thomas as Capt. Gerald Worthing
- Ferdinand Gottschalk as Governor Sir Anthony Daniels
- Tom Moore as Civil Surgeon
- John Wray as Giovanni Martini
- Garry Owen as Cuthbert Neal
Crew
- Edwin L. Marin · Director
- Lawrence G. Blochman · Writer
- Tom Reed · Writer
- Carl Laemmle Jr. · Producer
- Charles J. Stumar · Cinematographer
- Doris Drought · Editor