Northern Frontier

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)