Cast & crew
The Groundstar Conspiracy (1972)
Directed by Lamont Johnson Written by Douglas Heyes
Cast
| George Peppard | Tuxan |
| Michael Sarrazin | Bellamy |
| Christine Belford | Nicole |
| Cliff Potts | Mosely |
| Hagan Beggs | Hager |
| John Destry | Zabrinski |
| Milos Zatovic | Dr Chaleck |
| Martin Moore | MP |
| Peter Lavender | Newsroom Reporter |
| Don Vance | Newsroom Reporter |
| William Nunn | Newsroom Reporter |
| Barry Cahill | Newsroom Reporter |
| Roger Dressler | Charlie |
| James Olson | Stanton |
| Tim O'Connor | Gossage |
| James McEachin | Bender |
| Alan Oppenheimer | DCS Hackett |
| Ty Haller | Henshaw |
| Anna Hagan | Dr Chaleck |
| Bob Meneray | MP |
| Don Granbery | Military Technician |
| Robin Coller | Mussburger's Secretary |
| Richard Sergeant | MP |
| Ed Collier | Doctor |
| John Mitchell | MP |
Crew
| Douglas Heyes | Screenplay |
| Leslie P. Davies | Novel |
| Paul Hoffert | Original Music Composer |
| Hal Roach, Jr. | Producer |
| Trevor Wallace | Producer |
| Edward M. Abroms | Editor |
| Frank Arrigo | Associate Producer |
| Michael Reed | Director of Photography |
| Earl A. Glick | Executive Producer |
| Ron Drinkwater | Focus Puller |
| Cam Porteous | Set Designer |
| Lamont Johnson | Director |
| Margaret Hanly | Script Supervisor |
| Roy Piper | Associate Editor |
| Harvie McCracken | Unit Production Manager |
| Roger Good | Assistant Director |
| Ilse Richter | Wardrobe Supervisor |
| Bill Lewthwaite | Associate Editor |
| Frederic L. Knudtson | Associate Editor |
| Phyllis Newman | Makeup Artist |
| Herbert Ewing | Special Effects |
| David Ostere | Stunt Coordinator |
| Werner Keppler | Makeup Artist |
| John W. Gusselle | Sound Mixer |
| Bob Herron | Stunts |