| Bruce Willis |
Harry S. Stamper |
| Billy Bob Thornton |
Dan Truman, NASA Administrator |
| Ben Affleck |
A.J. Frost |
| Liv Tyler |
Grace Stamper |
| Will Patton |
Charles 'Chick' Chapple |
| Steve Buscemi |
Rockhound |
| William Fichtner |
Colonel William Sharp, Shuttle Freedom Pilot |
| Owen Wilson |
Oscar Choi, Geologist |
| Michael Clarke Duncan |
Jayotis 'Bear' Kurleenbear |
| Peter Stormare |
Lev Andropov, Russian Cosmonaut |
| Clark Heathcliffe Brolly |
Freddy Noonan |
| Ken Hudson Campbell |
Max Lennert |
| Keith David |
Lt. General Kimsey |
| Jessica Steen |
Jennifer Watts |
| Chris Ellis |
Walter Clark |
| Jason Isaacs |
Dr. Ronald Quincy |
| Grayson McCouch |
Gruber |
| Marshall R. Teague |
Colonel Davis, USAF |
| Anthony Guidera |
Tucker, Shuttle Independence Co-Pilot |
| Greg Collins |
Lt. Halsey, Munitions Specialist |
| David Keith |
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When an asteroid the size of Texas is headed for Earth the world's best deep core drilling team is sent to nuke the rock from the inside.