Steven Spielberg Director Sam Neill Dr. Alan Grant Actor Laura Dern Dr. Ellie Sattler Actor Jeff Goldblum Dr. Ian Malcolm Actor Richard Attenborough John Hammond Actor Bob Peck Robert Muldoon Actor Martin Ferrero Donald Gennaro Actor BD Wong Chief Geneticist Dr. Henry Wu Actor Joseph Mazzello Tim Murphy Actor Ariana Richards Alexis "Lex" Murphy Actor Samuel L. Jackson Ray Arnold Actor Wayne Knight Dennis Nedry Actor Gerald R. Molen Harding Actor, Producer Miguel Sandoval Rostagno Actor Cameron Thor Dodgson Actor Christopher John Fields Volunteer #1 Actor Dean Cundy Mate Actor, Cinematographer Jophery C. Brown Worker in Raptor Pen Actor Greg Burson Mr. D.N.A. Actor Richard Kiley Jurassic Park Tour Voice Voice Michael Crichton Writer, Screenwriter David Koepp Screenwriter Malia Scotch Marmo Screenwriter Kathleen Kennedy Producer Lata Ryan Associate Producer Colin Wilson Associate Producer John Williams Original Music Michael Kahn Film Editing Janet Hirshenson Casting Jane Jenkins Casting Rick Carter Production Design John Bell Art Director William James Teegarden Art Director Jackie Carr Set Decoration Christina Smith Makeup Artist Julie C. Steffes Makeup Artist