Keanu Reeves Klaatu
Jennifer Connelly Helen Benson
John Cleese Professor Barnhardt
Jon Hamm Michael Granier
Brandon T. Jackson Target Tech
Aaron Sims Character Designer
Steve Maslow Sound Re-Recording Mixer
Jaden Smith Jacob Benson
Ken Kirzinger Arguing Evacuee
Kathy Bates Regina Jackson
Serge Houde Scientist #1
Rukiya Bernard Student
Benton Jew Storyboard Artist
Robert Knepper Colonel
William Mesa Visual Effects Supervisor
Frederick Howard Sound Editor
Andrew W. Davidson Gaffer
Rob Brady Lighting Technician
Molly Pabian Visual Effects Production Assistant
Lorena Gale Scientist #2
Noah Beggs Stunts
Matthew D. Smith Second Assistant Director
Peter Ochotta Set Designer
Doane Gregory Still Photographer
Emily Wallin Visual Effects Producer
Gil Forrester Dolly Grip
Geoff Meed Field Commander Communications Officer
Sun Lee Matte Painter
Kurt Max Runte Civil Engineer
Matt Adler (voice)
Dan Sissons Property Master
Jussi Tegelman Sound Editor
James Hong Mr. Wu
Bela Trutz Camera Operator
Duane Floch Pre-Visualization Supervisor
Brian Avery Stunts
Bill Mondy Helicopter Scientist #2
Kyle Chandler John Driscoll
Marci T. House Medic #3
Dean Redman Military Policeman
Richard Keats Helicopter Scientist #1
Daniel Bacon Winslow
Elizabeth Wilcox Set Decoration
Nicola Ryall Key Costumer
Scott Fritts Animation
Ty Olsson Flash Chamber Colonel
Darien Provost Little Boy
Sunita Prasad Rouhani
Aaron Craven Technician
Dawn Chubai News Anchor
Tanya Champoux Isabel
Aaron Gilman Senior Animator
Lincoln Kupchak VFX Editor
Jeffrey A. Okun Visual Effects Supervisor
Judith Maxie Helicopter Scientist #3
Charleen Richards-Steeves ADR Mixer
Jim Filippone Aerial Coordinator
Ben Cotton Truck Driver
Leanne Adachi Flash Chamber Tech
Bonnie Clevering Hairstylist
Stefanie Samuels Guardswoman
Tony Lazarowich Special Effects Coordinator
John G. Anderson Construction Buyer
Jim Dunlap First Assistant Accountant
Dylan Dowd Greensman
Blake R. Cornett Sound Recordist
Jake McLaughlin Soldier
David Brisbin Production Design
Christian Schauz Lighting Technician
David Clarke Set Designer
William 'Big Sleeps' Stewart Transit Cop
Doug Hardwick Construction Coordinator