Narrator
Lance Lewman
Himself - Denver Museum of Nature & Science
Kirk Johnson
Himself - University of Michigan
Daniel Fisher
Ian Miller
Himself - Vertebrate Paleontologist
Joseph Sertich
Himself - United States Geological Survey
Eugene Schweig
Richard Stucky
Director
Eleanor Grant
Executive Producer
Paula S. Apsell
John B. Bredar
Coordinating Producer
Laurie Cahalane
Development Producer
David Condon
Producer
Associate Producer
Drew Grimes
Lisa Mirowitz
Pamela Rosenstein
Karinna Sjo-Gaber
Howard Swartz
Supervising Producer
Stephen Sweigart
Anne Tarrant
Melanie Wallace
Cinematography
David Linstrom
Editor
Andrea Barrick