Gavin Muir

Henderson

Bagley

Chalmers

Mr. Lang, government agent

Capt. Samuel Murdock

Capt. Strong

Gavin Gore

Melling

Col. Crawson

Maj. Lee - Doctor (uncredited)

Physician (uncredited)

Karl

Editor Richard Daniels

Herbert Evans

BBC Radio Announcer (voice) (uncredited)

Prentiss Johns

Weldon Laydon

Madden

William Forsythe

Nazi Major

G. G. Temple

Sergeant (uncredited)

Dr. Barth

Capt. Bibberbeigh

Leicester

Captain (uncredited)

Pilot (uncredited)

Dr. Philip Gray

Phillip Musgrave

Herbert Willett

Major Severn

Booth Pennock

Astrologer

Dr. McBain

Captain Griffiths (uncredited)

Herr Joyce / Lord Haw-Haw

Lieut. Fergus McKenzie

Lord J.B. Abbington

Captain Perry (Uncredited)

Redman

Dutch Military Messenger (uncredited)

Inspector Kendricks