| Bruce Willis | Harry S. Stamper |
| Billy Bob Thornton | Dan Truman, NASA Administrator |
| Liv Tyler | Grace Stamper |
| Ben Affleck | A.J. Frost |
| Will Patton | Charles 'Chick' Chapple |
| Peter Stormare | Lev Andropov, Russian Cosmonaut |
| Keith David | Lt. General Kimsey |
| Steve Buscemi | Rockhound |
| Owen Wilson | Oscar Choi, Geologist |
| William Fichtner | Colonel William Sharp, Shuttle Freedom Pilot |
| Jessica Steen | Jennifer Watts, Shuttle Freedom Co-Pilot |
| Jason Isaacs | Dr. Ronald Quincy, Research |
| Ken Campbell | Max Lennert |
| Grayson McCouch | Gruber |
| Clark Brolly | Freddy Noonan |
| Marshall Teague | Colonel Davis |
| Chris Ellis | Walter Clark |
| Eddie Griffin | Little Guy |
| Michael Clarke Duncan | Jayotis 'Bear' Kurleenbear |
| John Mahon | Karl |
| Grace Zabriskie | Dottie |
| Udo Kier | Psychologist |
| Seiko Matsuda | Asian Tourist |
| Lawrence Tierney | Hollis Vernon Grap Stamper |
A NASA rep recruits an oil driller and his team of mavericks to save Earth from an oncoming asteroid.
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