출연진
Eric Portman
Kuprin
John Gregson
Smith
Marius Goring
Laye-Parker
Martita Hunt
Madame Kuprin
Natasha Parry
Vera
Mervyn Johns
Holloway
John Phillips
Trifonov
Noel Johnson
Lowther
Heather Chasen
Isabel
Michael Barrington
Rowson
James Urquhart
McPherson
Wynford Vaughan-Thomas
Radio Commentator (voice)
Edward Burnham
Sir Geraint Lloyd
John Ruddock
Professor Ridley
Irene Sutcliffe
Miss Probert
Pauline Winter
Miss Lipscomb
Raymond Farrell
Journalist
Alexis Chesnakov
Leonidov
Ann Patrick
Nina
Alfred Hoffman
Hotel Clerk
John Bennett
Zagornetz