Doppelgänger (1969) — Cast
Cast
| Roy Thinnes | Colonel |
| Ian Hendry | Christy Kane |
| Patrick Wymark | Webb |
| Lynn Loring | Diana Ross |
| Ed Bishop | David |
| Loni von Friedl | Hartmann |
| Franco De Rosa | Landi |
| George Sewell | Neuman |
| Vladek Sheybal | Psychiatrist |
| Philip Madoc | Dr Chaleck |
| George Mikell | Diana Ross |
| Herbert Lom | Doctor |
| Peter van Dissel | Mallory |
| Nicholas Courtney | Analyst |
| Jon Kelley | Nurse |
| Ian Hendry | Christy Kane |
| Patrick Wymark | Webb |
| Ed Bishop | David |
| Nicholas Courtney | Analyst |
| George Sewell | Neuman |
| Loni von Friedl | Lisa |
| Vladek Sheybal | Psychiatrist |
| Peter van Dissel | Mallory |
| Herbert Lom | Doctor |
| Franco De Rosa | Landi |
| Roy Thinnes | Colonel |
| Philip Madoc | Dr Chaleck |
| Lynn Loring | Diana Ross |
Crew
| Robert Parrish | Director |
| Ernest Holding | Associate Producer |
| Sylvia Anderson | Screenplay |
| Donald James | Screenplay |
| Sylvia Anderson | Producer |
| Sylvia Anderson | Story |
| Len Walter | Editor |
| Barry Gray | Original Music Composer |
| John Read | Director of Photography |
| Brian Burgess | Production Manager |
| Bob Bell | Art Direction |
| Gerry Anderson | Producer |
| Gerry Anderson | Story |
| Derek Meddings | Visual Effects Director |
| Elsa Fennell | Wardrobe Supervisor |
| John O'Connor | Assistant Director |
| Ted Karnon | Sound Recordist |
| Gerry Anderson | Screenplay |
| Barbara Ritchie | Hairstylist |
| Joan Davis | Continuity |
| Julie Leighton-White | Production Secretary |
| Geoffrey Rodway | Makeup Artist |
| Philip Bawcombe | Assistant Art Director |
| Chris Burke | Assistant Art Director |
| Gloria Barnes | Wardrobe Master |
| Ivo Nightingale | Location Manager |
| Ken Rawkins | Sound Recordist |
| John Peverill | Sound Editor |
| Godfrey A. Godar | Camera Operator |
| Margaret Miller | Assistant Editor |
| Barry Gray | Original Music Composer |
| Robert Parrish | Director |
| Derek Meddings | Visual Effects Director |
| Chris Burke | Assistant Art Director |
| John O'Connor | Assistant Director |
| Philip Bawcombe | Assistant Art Director |
| Elsa Fennell | Wardrobe Supervisor |
| Ernest Holding | Associate Producer |
| Sylvia Anderson | Screenplay |
| Barbara Ritchie | Hairstylist |
| Gerry Anderson | Screenplay |
| Gerry Anderson | Producer |
| Gerry Anderson | Story |
| Brian Burgess | Production Manager |
| John Read | Director of Photography |
| Len Walter | Editor |
| Ken Rawkins | Sound Recordist |
| Godfrey A. Godar | Camera Operator |
| Bob Bell | Art Direction |
| Sylvia Anderson | Producer |
| Sylvia Anderson | Story |