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