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