Sam Neill

Dr. Alan Grant

Steven Spielberg

Executive Producer

William H. Macy

Paul Kirby

Laura Dern

Ellie

Michael Jeter

Udesky

Joe Johnston

Director

Bruce A. Young

Nash

Alessandro Nivola

Billy Brennan

Frank Clem

Man in Suit

Julio Oscar Mechoso

Enrique Cardoso

Téa Leoni

Amanda Kirby

Bruce French

Science Reporter

Mark Harelik

Ben Hildebrand

Alexander Payne

Writer

Trevor Morgan

Eric Kirby

Taylor Nichols

Mark

Jim Taylor

Writer

John Diehl

Cooper

Linda Park

Hannah

Sonia Jackson

Symposium Leader

Blake Michael Bryan

Charlie

Sarah Danielle Madison

Cheryl

Bernard Zilinskas

Male Student

Rona Benson

Female Student

Sean Coffey

Palentology Student (uncredited)

Karin M. Gaarder

Paleontology Student (uncredited)

Edward C. Gillow

University Professor at Symposium (uncredited)

Craig Richards

Billy's Bar Buddy (uncredited)

Peter Buchman

Writer