Jennifer Connelly Helen Benson
Keanu Reeves Klaatu
Jon Hamm Michael Granier
Robert Knepper Colonel
Kyle Chandler John Driscoll
Kathy Bates Regina Jackson
James Hong Mr. Wu
Jaden Smith Jacob Benson
Jake McLaughlin Soldier
Brandon T. Jackson Target Tech
Roger Cross General Quinn
Scott Derrickson Director
Marci T. House Medic #3
Ty Olsson Flash Chamber Colonel
Patrick Sabongui Soldier #1
Bill Mondy Helicopter Scientist #2
John Cleese Professor Barnhardt
Richard Keats Helicopter Scientist #1
Hiro Kanagawa Dr. Ikegawa
Andrew Wheeler Guardsman
Ben Cotton Truck Driver
Leanne Adachi Flash Chamber Tech
Stefanie Samuels Guardswoman
Jacob Blair Soldier #2
J.C. MacKenzie Grossman
Ken Kirzinger Arguing Evacuee
Daniel Bacon Winslow
Jeff Dashnaw Stunts
Joshua Close Flash Chamber Engineer
Geoff Meed Field Commander Communications Officer
Michael Hogan General
Melissa R. Stubbs Stunts
Serge Houde Scientist #1
Rukiya Bernard Student
George Sharperson Cop
Laura Graham ADR Editor
John Rothman Dr. Myron
Buddy Joe Hooker Stunts
Joann Fowler Makeup Artist
Gregory Goodman Producer
Heather Doerksen Regina's Aide
Erick Geisler Visual Effects Producer
Doug Chapman Medic #2
Mousa Kraish Yusef
Richard Tillman Army Sergeant
Shaker Paleja Medic #1
David Lucarelli ADR Recordist
Dane A. Davis Sound Designer, Supervising Sound Editor
Gary Burritt Negative Cutter
Kurt Max Runte Civil Engineer
Trevor Addie Stunts
Steve M. Davison Stunt Coordinator
David Scarpa Screenplay
Judith Maxie Helicopter Scientist #3
Brian Avery Stunts
Matt Adler (voice)
Fraser Aitcheson Stunts
Brad Dryborough Train Passenger #2
Reese Alexander Sergeant
Mindy Marin Casting
Hugo Steele Stunts
Sunita Prasad Rouhani
David Tattersall Director of Photography
Aaron Craven Technician
Laura Lee Connery Stunts
J.J. Makaro Stunt Coordinator
Jussi Tegelman Sound Editor
Carrick O'Quinn Stunts
Jeff Habberstad Second Unit Director
Lorena Gale Scientist #2
Francisco X. Pérez Makeup Artist
Nickolas Baric Stunts