Cast
Denholm Elliott
Pond-Jones
Wanda Ventham
Mrs. Winters
Laurence Harvey
Dr. Francis Trevelyan
Colin Blakely
Russian Prime Minister
Michael Trubshawe
Braithwaite
Barry Cryer
Harold Wilson (voice)
Renée Houston
Lady Blanchflower
Daliah Lavi
Princess Natasha Romanova
Eric Sykes
Wrigley
Marianne Stone
Mrs. Whitby
Lionel Jeffries
Stanley Farquhar
Robert Flemyng
M.I.5 Director
June Whitfield
Elsie Farquhar
Bernard Archard
Russian Intelligence Chief
Paul Ford
American General
Eric Portman
British Ambassador