Jan de Bont Director Helen Hunt Dr. JoAnne 'Jo' Thornton-Harding Actor Bill Paxton William Harding Actor Cary Elwes Dr. Jonas Miller Actor Jami Gertz Dr. Melissa Reeves Actor Lois Smith Meg Greene Actor Alan Ruck Robert 'Rabbit' Nurick Actor Philip Seymour Hoffman Dustin Davis Actor Jeremy Davies Laurence Actor Todd Field Tim 'Beltzer' Lewis Actor Zach Grenier Eddie Actor Nicholas Sadler Kubrick Actor Abraham Benrubi Bubba Actor Jake Busey Mobile Lab Technician Actor Scott Thomson Jason 'Preacher' Rowe Actor Erik LaRay Harvey Eric Actor Sean Whalen Allan Sanders Actor Michael Crichton Writer, Producer Anne-Marie Martin Writer Laurie MacDonald Executive Producer Gerald R. Molen Executive Producer Walter F. Parkes Executive Producer Steven Spielberg Executive Producer Kathleen Kennedy Producer Ian Bryce Producer Tori Amos Original Music Michael Anthony Original Music Ritchie Blackmore Original Music Sammy Hagar Original Music Mark Mancina Original Music Alex Van Halen Original Music Jack N. Green Cinematographer Michael Kahn Film Editing Risa Bramon Garcia Casting Joseph C. Nemec III Production Design Ronald R. Reiss Set Decoration Ellen Mirojnick Costume Design