Født September 30, 1946 · St. Louis, Missouri, USA
Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Writer | Alien | 1979 | |
| Writer | Alien | 1979 | |
| Writer | Alien: Covenant | 2017 | |
| Writer | AVP: Alien vs. Predator | 2004 | |
| Writer | Aliens vs Predator: Requiem | 2007 | |
| Writer | Total Recall | 1990 | |
| Writer | Total Recall | 2012 | |
| Writer | The Return of the Living Dead | 1985 | |
| Director | The Return of the Living Dead | 1985 | |
| Writer | Lifeforce | 1985 | |
| Writer | Blue Thunder | 1983 | |
| Writer | Screamers | 1995 | |
| Actor | Dark Star | 1974 | |
| Writer | Dark Star | 1974 | |
| Writer | Dead & Buried | 1981 | |
| Writer | Invaders from Mars | 1986 | |
| Director | The Resurrected | 1991 | |
| Writer | Alien: Containment | 2019 | |
| Writer | Bleeders | 1997 | |
| Writer | Alien: Ore | 2019 | |
| Crew | Alien: Ore | 2019 | |
| Writer | Alien: Specimen | 2019 | |
| Writer | Alien: Harvest | 2019 | |
| Writer | Alien: Alone | 2019 | |
| Writer | Alien: Night Shift | 2019 |