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