Michael Caine
Philip Kimberley / Sergei Kuzminsky
Laurence Olivier
Adm. Sir Gerald Scaith
Susan George
Penelope Kimberley / Annabelle Kimberley
Robert Powell
Jamie Fraser
Charles Gray
Sir James Chorley
Michael Medwin
Milroy
Eric Sevareid
Himself
Sabine Sun
Dr. Zilenka
David Kelly
Cameron
Vladek Sheybal
Gen. Zorin
Peter Burton
Douglas Ransom
Maggie Rennie
Mrs. Ransom
Richard Aylen
Older Kimberley
Maureen Bennett
Susan
Anthony Dawson
Vicar
John Franklyn-Robbins
English doctor
Thomas Heathcote
Gamekeeper
Matthew Scurfield
KGB man #1
Jana Shelden
Air hostess
Yuri Borienko
Russian trainer
Bill Shine
Commissionaire
Jennifer Jayne
Nurse
Owen Brenman
Policeman
Guy Standeven
Albert, The Club Steward (uncredited)
Morteza Kazerouni
Boris Medvachian
Patrick Dawson
Ginger
Anthony Pullen Shaw
Matthews
Peggy Marshall
Polly
Robert Austin
KGB man #2
Peter Hutchins
Connolly
David Allister
Sgt. Lloyd
Ian Masters
Special Branch Man
Richard Borthwick
Policeman
Maurice Thorogood
Policeman
Nuala Barrie
Lady in Church
P.G. Stephens
Scaith's Driver
Nigel Humphreys
Petrol Attendant