- John Howard
- Captain Hugh C. 'Bulldog' Drummond
- Heather Angel
- Phyllis Clavering
- H.B. Warner
- Colonel Nielson
- Reginald Denny
- Algy Longworth
- E.E. Clive
- Tenny
- Elizabeth Patterson
- Aunt Blanche Clavering
- Eduardo Ciannelli
- Henri Armides
- Gerald Hamer
- Garvey
- John Sutton
- Inspector Tredennis
- Neil Fitzgerald
- Evan Barrows
- Louis Mercier
- Mayor Dupres
- Adia Kuznetzoff
- Gaston
- Adrienne D'Ambricourt
- Therese
- Matthew Boulton
- Blake--Fingerprint Expert
- Clyde Cook
- Traffic Control Constable
- George Davis
- Gaoler
- Jacques Lory
- Clerk of the Court
- John Power
- Omnibus Driver
- Wyndham Standing
- Ambulance Doctor
- David Torrence
- Bank Official
