Sam Witwicky
Mikaela Banes
Optimus Prime (voice)
Megatron (voice)
Fallen (voice)
Major Lennox
USAF Chief Master Sergeant Epps
Simmons
Leo Spitz
Ron Witwicky
Judy Witwicky
Alice
Galloway
Special Air Service Forces
Cal
General Morshower
Aide
Arcee Rider
Professor Colan
April the Resident Assistant
Fassbinder
Sharsky
Frisbee Girl
Frat Guy
Pundit
Egyptian Interpol Officer
Egyptian Guard
Bedouin with Donkey
Air Force Chief of Staff
NORAD General
Air Force Military Police
NSA Officer
Simmons Mom
Yakov
Smithsonian Guard
Reporter
FBI Director
Ticket Agent
Joint Ops Staff
USS Roosevelt Captain
Diego Garcia Soldier
Commander, US Central Command
Strike Force Team
Jetfire (voice)
Mudflap (voice)
Ironhide (voice)
Ratchet (voice)
Sideswipe (voice)
Arcee (voice)
Starscream (voice)
Soundwave / Devastator / Reedman (voice)
Wheelie / Skids (voice)
Wheelbot (voice)
Doctor (voice)
Prime #1 (voice)
Prime #2 / Skipjack (voice)
Prime #3 (voice)
Astronomy Student (uncredited)
College Student (uncredited)
CNN Reporter (uncredited)
Mandarin Blogger (uncredited)
C-17 Pilot (uncredited)
French Cafe Patron (uncredited)
Reporter (uncredited)