Wayne D. Barlowe

Self

Curtis Clark

Self

James Garvin

Self

Jamie Haines

Self

Stephen Hawking

Self

Jack Horner

Self

Joan Horvath

Self

Michio Kaku

Self

George Lucas

Self

John C. McGinley

Narrator

Victoria Meadows

Self

David Moriarty

Self

Randy Pollock

Self

J. Craig Venter

Self

James Kirkland

Self

Pierre de Lespinois