49th Parallel

Leslie Howard

Philip Armstrong Scott

Laurence Olivier

Johnnie, the Trapper

Raymond Massey

Andy Brock

Anton Walbrook

Peter

Eric Portman

Lieutenant Hirth

Raymond Lovell

Lieutenant Kuhnecke

Richard George

Kommandant Bernsdorff

Niall MacGinnis

Vogel

Peter Moore

Kranz

John Chandos

Lohrmann

Finlay Currie

The Factor

Glynis Johns

Anna

Basil Appleby

Jahner

Ley On

Nick - the Eskimo

Charles Victor

Andreas

Frederick Piper

David

Tawera Moana

George, the Indian

Eric Clavering

Art

Charles Rolfe

Bob

Theodore Salt

A United States Customs Officer

O.W. Fonger

A United States Customs Officer

George Alexander

Cameo

Robert Beatty

RCMP Mountie in Alberta (voice)

Eric Berry

Nazi Radio Announcer

Gron Davies

Officer on Submarine

Leslie Falardeau

Aviator on Seaplane

Lionel Grose

Undetermined Role

Stuart Latham

Second Nazi Radio Announcer

Norman Luxton

Man in fringed jacket on balcony at Banff Indian Day

Vincent Massey

Prologue Narrator (voice)

Percy Parsons

Hi-Jacked Canadian Motorist

Gerry Wilmot

Canadian Radio Announcer

Jack Hynes

Aviator on Seaplane