Full Credits
20 members

Kermit Maynard
Mountie Sergeant Mack MacKenzie

Eleanor Hunt
Beth Braden

Russell Hopton
Duke Milford

J. Farrell MacDonald
Inspector

LeRoy Mason
Stone

Gertrude Astor
Mae

Ben Hendricks Jr.
Sam Keene

Walter Brennan
Stuttering Cook

Lloyd Ingraham
Prof. Braden

Nelson McDowell
Tope

Lafe McKee
Old Trapper
Chris Willow Bird
Indian Henchman (uncredited)
Jack Chisholm
Henchman Durkin (uncredited)

Kernan Cripps
Mike - the Bartender (uncredited)

Dick Curtis
Henchman Pete (uncredited)

Henry Hall
Old Trapper #2 (uncredited)

Charles King
Mountie Wallace (uncredited)

Artie Ortego
Henchman Gareau (uncredited)

Tyrone Power
Mountie (uncredited)
Rocky
Mack's Horse (uncredited)
9 members
Sam Newfield
Director
James Oliver Curwood
Novel
Barry Barringer
Screenplay
Maurice Conn
Producer
Sigmund Neufeld
Producer
Edgar Lyons
Director of Photography
Hans Weeren
Sound
Lewis J. Rachmil
Set Decoration
John English
Editor