* Julianne Moore tohtori Sarah Hardingina
* Vince Vaughn Nick Van Owenina
* Pete Postlethwaite Roland Tembona
* Richard Schiff esittää Eddie Carria
* Cameron Thor Lewis Dodgsonina
* Vanessa Lee Chester Kelly Curtisina
* Arliss Howard Peter Ludlowina
* Joseph Mazzello Tim Murphynä
* Ariana Richards Lex Murphyna
* James Cromwell tohtori John Hammondina
* Bob Peck Robert Muldoonina
* Samuel L. Jackson hahmona Ray Arnold
* Wayne Knight hahmona Dennis Nedry