Jennifer Connelly Helen Benson
Keanu Reeves Klaatu
Kyle Chandler John Driscoll
Jon Hamm Michael Granier
Kathy Bates Regina Jackson
Robert Knepper Colonel
Hiro Kanagawa Dr. Ikegawa
John Cleese Professor Barnhardt
James Hong Mr. Wu
Jaden Smith Jacob Benson
Ty Olsson Flash Chamber Colonel
Brandon T. Jackson Target Tech
Patrick Sabongui Soldier #1
Jake McLaughlin Soldier
Juan Riedinger William Kwan
Ben Cotton Truck Driver
Joshua Close Flash Chamber Engineer
Scott Derrickson Director
Roger Cross General Quinn
Marci T. House Medic #3
Michael Hogan General
J.C. MacKenzie Grossman
Bill Mondy Helicopter Scientist #2
Serge Houde Scientist #1
Ken Kirzinger Arguing Evacuee
Rukiya Bernard Student
Laura Lee Connery Stunts
Tyler Bates Original Music Composer
Jacob Blair Soldier #2
Blair Redford Army Fighter Pilot #1
Reese Alexander Sergeant
Mindy Marin Casting
Heather Doerksen Regina's Aide
Paul Harris Boardman Producer
Melissa R. Stubbs Stunts
Jeff Dashnaw Stunts
Sunita Prasad Rouhani
Richard Keats Helicopter Scientist #1
Gary Burritt Negative Cutter
Gregory Goodman Producer
David Richmond-Peck Polygraph Operator
Fraser Aitcheson Stunts
David Tattersall Director of Photography
Geoff Meed Field Commander Communications Officer
Andrew Wheeler Guardsman
Dean Redman Military Policeman
Darien Provost Little Boy
Doug Chapman Medic #2
Rick Newsome Storyboard Artist
Daniel Bacon Winslow
Gregg Landaker Sound Re-Recording Mixer
Dane A. Davis Supervising Sound Editor, Sound Designer
Jamie Dixon Visual Effects Supervisor
Aaron Craven Technician
Brad Dryborough Train Passenger #2
David Scarpa Screenplay
John Rothman Dr. Myron
Erwin Stoff Producer
Nickolas Baric Stunts
Leanne Adachi Flash Chamber Tech
Mousa Kraish Yusef
Wayne D. Barlowe Concept Artist
Francisco X. Pérez Makeup Artist
Matt Adler (voice)
Bill R. Dean Supervising Sound Editor
Guy Bews Stunts
Jeff Habberstad Second Unit Director
Shawn Beaton Stunts
Shaker Paleja Medic #1
Sam Gilroy Tom
Kara Lipson Casting Associate
Judith Maxie Helicopter Scientist #3