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