Sam Neill character Dr. Alan Grant
William H. Macy character Paul Kirby
Téa Leoni character Amanda Kirby
Alessandro Nivola character Billy Brennan
Trevor Morgan character Erik Kirby
Michael Jeter character Mr. Udesky
John Diehl character Cooper
Bruce A. Young character M.B. Nash
Laura Dern character Dr. Ellie Sattler
Taylor Nichols character Mark Degler
Mark Harelik character Ben Hildebrand
Julio Oscar Mechoso character Enrique Cardoso
Blake Michael Bryan character Charlie
Sarah Danielle Madison character Cheryl Logan
Linda Park character Hannah
Sonia Jackson character Symposium Leader
Bruce French character Science Reporter
Bernard Zilinskas character Male Student
Rona Benson character Female Student
Frank Clem character Man in Suit
Craig Hosking character Pilot
Rick Shuster character Pilot
Sean Coffey character Palentology Student (uncredited)
Karin M. Gaarder character Paleontology Student (uncredited)
Edward C. Gillow character University Professor at Symposium (uncredited)
Troy Higgins character Paleontology Student (uncredited)
Craig Richards character Billy's Bar Buddy (uncredited)
Brad Everett Young character Paleontology Student (uncredited)
