Aaron Eckhart
Dr. Josh Keyes
Hilary Swank
Maj. Rebecca Childs
Delroy Lindo
Dr. Ed 'Braz' Brazzleton
Stanley Tucci
Dr. Conrad Zimsky
Tchéky Karyo
Serge
DJ Qualls
Theodore Donald 'Rat' Finch
Richard Jenkins
Gen. Thomas Purcell
Bruce Greenwood
Cmdr. Robert Iverson
Christopher Shyer
Dave Perry
Ray Galletti
Paul
Eileen Pedde
Lynne
Rekha Sharma
Danni
Tom Scholte
Acker
Glenn Morshower
FBI Agent
Anthony Harrison
FBI Agent
Alfre Woodard
Stickley
Fred Keating
Court-Martial Presiding Officer
Bart Anderson
Dad
Nicole Leroux
Mom
Justin Callan
Little Boy
Chris Humphreys
GBTV Reporter - Trafalgar Square
Dion Johnstone
Flight Engineer Timmins
Fred Ewanuick
Endeavor Flight Engineer
Hrothgar Mathews
Chief Engineer Mission Control
Ming-Tzong Hong
Scientist
Jennifer Spence
Zimsky's Assistant
Michael St. John Smith
Pentagon General
John Shaw
FBI Agent - Rat's Apartment
Nickolas Baric
Security Policeman - Tribunal
Rosa Di Brigida
Rome Café Patron
Roberto Roberto
Rome Café Patron
Ermanno De Biagi
Rome Café Patron
Marcello Laurentis
Rome Café Patron
Matt Winston
Luke Barry
Claire Riley
News Anchor
Marke Driesschen
News Anchor
Laurie Murdoch
Project Destiny Engineer
Costa Spanos
Project Destiny Engineer
Monique Martel
Paris Café Lady
Lenie Scoffié
Paris Café Lady
Nathaniel DeVeaux
U.S.S. Constellation Captain
Robert Manitopyes
U.S.S. Constellation Screen Ops
Alejandro Abellan
U.S.S. Soldier (uncredited)
Benjamin Barton
Scientist / Extra (uncredited)
Angelica Hayden
Coffeehouse Patron (uncredited)
Robert Paul Lewis
Beach-goer (uncredited)
Alec Medlock
(voice) (uncredited)
Alonso Oyarzun
Security Policeman (uncredited)
Priscilla Poland
Scientist (uncredited)
Shawn Green
Himself
Greg Bennett
Technician - Virgil Base
Jeffrey Gold
Engineer (uncredited)
Rick Kain
Chief Petty Officer (uncredited)
Pamela Martin
News Anchor (uncredited)