Discover
John Lodge
Hugh "Bulldog" Drummond
Dorothy Mackaill
Doris Thompson
Victor Jory
Gregoroff
Claud Allister
Algy Longworth
Richard Bird
Caldwell
Hugh Miller
Ivan Kalinsky
Leslie Perrins
Major Grayson
Brian Buchel
Meredith
Jim Gérald
Veight
Maire O'Neill
Norah
Annie Esmond
Mrs. Caldwell
Frank Cochrane
Dr. Belfrus
William Dewhurst
Reginald Portside
Ben Williams
Reporter
Wilfrid Hyde-White
Conrad
Art
John Mead
Settings
Camera
Walter J. Harvey
Director of Photography
Editing
J. Corbett
Editor
Production
Walter C. Mycroft
Production Director
Sound
Buster Ambler
Sound Recordist
Art
John Mead
Settings
Camera
Walter J. Harvey
Director of Photography
Editing
J. Corbett
Editor
Production
Walter C. Mycroft
Production Director
Sound
Buster Ambler
Sound Recordist