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