Self (archive footage)

Douglas Whitehead

Mr. Southcott

South African Consul

Henry Tunstall

Charles Lloyd

General Lloyd-Griffis

Adm. Lord Mountbatten

Captain Grant

Lindsay Woolsey

Josef Cartier

Charles de Marigny

Wayne Vincent

Philippe Voyson

George Kennely

Julian March

Capt. Keith Lambert

William Montague

Edwards, English Traitor

Capt. Ben Waldridge

Charles Douglas

Harry Keith

Jim Fiske

Richard Brannon

Jim Lucas

Patric Knowles

Dr. Roger Gretorex

Duc le Chandre

Harry Griffiths

Lance Gale

Cmdr. Brady

Thomas Grant

Brett Harwood Earl of Carstairs

Maj. Hilary Jarret

Anthony "Tony" Page

Commander Judd Corrigan

Edmund 'Mac' MacLean

Tony Warren

Dr. Bill Perry

Dr. William 'Bill' Burns

Dr. Frank Mannering

Trimble-Pomfret Son

Jim Turner

Wade Crowell

Doctor Enright

Dr. Paul Dupin

Private Detective Jerry Church

Frank Andrews

Ivor Morgan

Gilbert Blythe

Lt. Larry Hall

John Storm

Paul Wilding

Dudley Horn

Tom Dixon

Judson Ellis

Denny Williams

Capt. Condon

Patterson Buckley (archive footage) (uncredited)

Jim Montgomery

Captain Jeffrey Allison

Norman French

Patterson 'Pat' Buckley

Will Scarlett

Lance O'Leary

Prince Rupert Heinrich Franz Von Rentzau

Henry Grant Jr.

Lord Jerry Wendower

Captain Perry Vickers

Robert 'Bob' Melford

Tony Meredith

Chris Jensen

John Gillespie

Paul

Omar - Hilmi's Attache

Harry Markham

Tom Burrows

Max Brandt