Trailer
Images
 | Michael Caine as Philip Kimberley / Sergei Kuzminsky |
 | Laurence Olivier as Adm. Sir Gerald Scaith |
 | Susan George as Penelope Kimberley / Annabelle Kimberley |
 | Robert Powell as Jamie Fraser |
 | Charles Gray as Sir James Chorley |
 | Morteza Kazerouni as Boris Medvachian |
 | Michael Medwin as Milroy |
 | Eric Sevareid as Himself |
 | Sabine Sun as Dr. Zilenka |
 | David Kelly as Cameron |
| Patrick Dawson as Ginger |
 | Vladek Sheybal as Gen. Zorin |
 | Peter Burton as Douglas Ransom |
 | Maggie Rennie as Mrs. Ransom |
 | Richard Aylen as Older Kimberley |
| Anthony Pullen Shaw as Matthews |
 | Maureen Bennett as Susan |
 | Anthony Dawson as Vicar |
| Peggy Marshall as Polly |
 | John Franklyn-Robbins as English doctor |
 | Thomas Heathcote as Gamekeeper |
 | Matthew Scurfield as KGB man #1 |
| Robert Austin as KGB man #2 |
 | Jana Shelden as Air hostess |
| Peter Hutchins as Connolly |
 | Yuri Borienko as Russian trainer |
 | Bill Shine as Commissionaire |
| David Allister as Sgt. Lloyd |
 | Jennifer Jayne as Nurse |
| Ian Masters as Special Branch Man |
| Richard Borthwick as Policeman |
 | Owen Brenman as Policeman |
| Maurice Thorogood as Policeman |
| Nuala Barrie as Lady in Church |
| P.G. Stephens as Scaith's Driver |
| Nigel Humphreys as Petrol Attendant |
 | Guy Standeven as Albert, The Club Steward (uncredited) |
| Directing | |
| Terence Young | Director |
Writing | |
| Jo Eisinger | Screenplay |
Editing | |
| Derek Trigg | Editor |
Writing | |
| Dorothea Bennett | Novel |
Production | |
| Benjamin Fisz | Producer |
| Robert Porter | Co-Producer |
Camera | |
| Freddie Francis | Director of Photography |
Production | |
| Mahmud Sipra | Executive Producer |
| Dennis Hall | Location Manager |
Sound | |
| John Cameron | Original Music Composer |
| Robin Gregory | Sound Recordist |
Crew | |
| James Payne | Stand In |
