Stephen Hawking

Self - Host

Jason Diablo

Jerry, Smiler

Paul Herbert

Technician #1, Medical Technician

Malcolm McDowell

Tibor Cargrew

Clifton Collins Jr.

Frendon Blythe

Judy Davis

Deanna

Viv Leacock

Willy

Doron Bell

Kirby

Vicky Lambert

Frenchy

Sean Astin

Charlie Kramer

Anne Heche

Martha Von Vogel

Alex Zahara

Bucky

Peter Bryant

Dr. Gavin

Jorge Vargas

Young Man

Samir El Sharkawi

Iraqi

James Cromwell

Randolph Ludwin

Sam Waterston

Havelman

Lorena Gale

Mary (Mother)