as G. G. Temple
as Booth Pennock
as Herbert Evans
as Dr. Barth
as Captain Perry (Uncredited)
as Weldon Laydon
as Captain Griffiths (uncredited)
as Capt. Bibberbeigh
as Maj. Lee - Doctor (uncredited)
as Physician (uncredited)
as Capt. Strong
as Henderson
as Lieut. Fergus McKenzie
as Inspector Kendricks
as Captain (uncredited)
as Prentiss Johns
as Nazi Major
as Dr. McBain
as Chalmers
as Major Severn
as Sergeant (uncredited)
as Mr. Lang, government agent
as William Forsythe
as Phillip Musgrave
as Melling
as Lord J.B. Abbington
as Col. Crawson
as Capt. Samuel Murdock
as Astrologer
as Redman
as Pilot (uncredited)
as Herr Joyce / Lord Haw-Haw
as Dr. Philip Gray
as BBC Radio Announcer (voice) (uncredited)
as Dutch Military Messenger (uncredited)
as Gavin Gore
as Editor Richard Daniels
as Bagley
as Leicester
as Karl
as Herbert Willett
as Madden
as Mr. Wallingford
as Harry
as MacFadden
as Oliver Jenkins
as Passenger Describing His Dream
as Plainclothesman
as Rutledge
