Shia LaBeouf Sam Witwicky
Megan Fox Mikaela Banes
Peter Cullen Optimus Prime (voice)
Steven Spielberg Executive Producer
Michael Bay Director, Executive Producer
Michael York Prime #1 (voice)
Grey DeLisle Arcee (voice)
Tyrese Gibson USAF Chief Master Sergeant Epps
Rainn Wilson Professor Colan
Josh Duhamel Major Lennox
Hans Zimmer Thanks
Tom Kenny Wheelie / Skids (voice)
Ramón Rodríguez Leo Spitz
Frank Welker Soundwave / Devastator / Reedman (voice)
John Turturro Simmons
Mark Vahradian Executive Producer
America Olivo Frisbee Girl
Hubie Kerns Jr. Stunt Driver
Deborah L. Scott Costume Design
Kevin Dunn Ron Witwicky
Brian Avery Stunts
Emile Ghorayeb Animation
Marc Evan Jackson Commander, US Central Command
Jim Holmes Reporter
Reno Wilson Mudflap (voice)
Ehren Kruger Writer
Karen Golden Script Supervisor
John Nielsen USS Roosevelt Captain
Annie Korzen Simmons Mom
Hugo Weaving Megatron (voice)
Robert Foxworth Ratchet (voice)
Kevin Michael Richardson Prime #2 / Skipjack (voice)
Katie Lowes April the Resident Assistant
Arnold Chun Diego Garcia Soldier
Marvin Williams Second Second Assistant Director
Joey Freitas Stunt Driver
Mike Majesky Stunt Driver
Jen Weissenberg Stunts
Julie White Judy Witwicky
Alex Fernandez Joint Ops Staff
Isabel Lucas Alice
Tony Todd Fallen (voice)
Charlie Adler Starscream (voice)
Glenn Morshower General Morshower
Alex Gibson Music Editor
Aaron Lustig Reporter
Andrew Howard Special Air Service Forces
Spencer Garrett Air Force Chief of Staff
Philip Tan Stunts
Donna Evans Stunts
Josh Kelly Strike Force Team
David Bowe Smithsonian Guard
Jareb Dauplaise Frat Guy
Aaron Hill Frat Guy
Jess Harnell Ironhide (voice)
Michael Papajohn Cal
André Sogliuzzo Sideswipe (voice)
Casey Nelson Joint Ops Staff
Matthew Marsden Special Air Service Forces
Tarah Paige Stunt Double
Rick Cramer Diego Garcia Soldier
Yolanda Toussieng Hair Department Head
Robin Atkin Downes Prime #3 (voice)
Karina Michel Reporter (uncredited)
Mike Marcuzzi Digital Effects Supervisor
Edouard F. Henriques III Makeup Department Head
Cas Anvar Egyptian Interpol Officer
Mark Ginther Utility Stunts
Cornell Womack FBI Director
Troy Robinson Stunt Coordinator
Alex Kurtzman Writer
Stella Angelova Stunt Double