Phase IV (1974) — Cast
Cast
| Michael Murphy | James |
| Lynne Frederick | Eldridge |
| Alan Gifford | Eldridge |
| Robert Henderson | Clete Dyker |
| Helen Horton | Eldridge |
| David Healy | (uncredited) |
| Nigel Davenport | Hubbs |
| David Healy | Announcer |
| Nigel Davenport | Hubbs |
| Michael Murphy | James |
| Lynne Frederick | Eldridge |
| Alan Gifford | Eldridge |
| Robert Henderson | Clete Dyker |
| Helen Horton | Eldridge |
Crew
| Brian Gascoigne | Original Music Composer |
| Dick Bush | Director of Photography |
| John Barry | Art Direction |
| Saul Bass | Director |
| Paul B. Radin | Producer |
| Willy Kemplen | Editor |
| Jack Mills | Second Unit Cinematographer |
| William P. Cartlidge | Assistant Director |
| Saul Bass | Title Designer |
| John Poyner | Sound Editor |
| Pamela Carlton | Continuity |
| Bob Jones | Sound Mixer |
| Betty Glasow | Hairdresser |
| David Vorhaus | Musician |
| Alan Arnold | Publicist |
| John Swan | Electrician |
| Mayo Simon | Writer |
| Keith Hamshere | Still Photographer |
| Rosemary Burrows | Wardrobe Supervisor |
| Eva Monley | Production Manager |
| Ivo Nightingale | Location Manager |
| Norman Bolland | Sound Recordist |
| John Richardson | Special Effects |
| Dennis C. Lewiston | Camera Operator |
| Verena Coleman | Costume Design |
| Freddie Williamson | Makeup Artist |
| Norman Reynolds | Assistant Art Director |
| Ron Phipps | Production Accountant |
| Iris Rose | Production Secretary |
| Ken Middleham | Additional Photography |
| Bill Welch | Construction Manager |
| Stomu Yamashta | Additional Music |
| Rex Neville | Special Effects |
| Brian Gascoigne | Conductor |
| Brian Gascoigne | Original Music Composer |
| Saul Bass | Director |
| Paul B. Radin | Producer |
| Willy Kemplen | Editor |
| Dick Bush | Director of Photography |
| William P. Cartlidge | Assistant Director |
| Keith Hamshere | Still Photographer |
| Eva Monley | Production Manager |
| Norman Bolland | Sound Recordist |
| John Richardson | Special Effects |
| Verena Coleman | Costume Design |
| John Barry | Art Direction |
| Freddie Williamson | Makeup Artist |
| Bill Welch | Construction Manager |
| Ron Phipps | Production Accountant |
| Rosemary Burrows | Wardrobe Supervisor |
| Ivo Nightingale | Location Manager |
| Stomu Yamashta | Additional Music |
| Dennis C. Lewiston | Camera Operator |
| Saul Bass | Title Designer |
| Bob Jones | Sound Mixer |
| Brian Gascoigne | Conductor |
| Jack Mills | Second Unit Cinematographer |
| Norman Reynolds | Assistant Art Director |
| Ken Middleham | Additional Photography |
| Rex Neville | Special Effects |
| Betty Glasow | Hairdresser |
| Pamela Carlton | Continuity |
| John Swan | Electrician |
| David Vorhaus | Musician |
| Alan Arnold | Publicist |
| Iris Rose | Production Secretary |
| John Poyner | Sound Editor |
| Mayo Simon | Writer |