Megan Fox Mikaela Banes
Hugo Weaving Megatron (voice)
Steven Spielberg Executive Producer
Tom Kenny Wheelie / Skids (voice)
Kevin Michael Richardson Prime #2 / Skipjack (voice)
Hans Zimmer Thanks
Josh Duhamel Major Lennox
Shia LaBeouf Sam Witwicky
John Turturro Simmons
Isabel Lucas Alice
Frank Welker Soundwave / Devastator / Reedman (voice)
Tyrese Gibson USAF Chief Master Sergeant Epps
Grey DeLisle Arcee (voice)
Michael Bay Executive Producer, Director
Kevin Dunn Ron Witwicky
Tony Todd Fallen (voice)
Rainn Wilson Professor Colan
Ramón Rodríguez Leo Spitz
Robin Atkin Downes Prime #3 (voice)
Peter Cullen Optimus Prime (voice)
Robert Foxworth Ratchet (voice)
Katie Lowes April the Resident Assistant
Michael York Prime #1 (voice)
Glenn Morshower General Morshower
Marc Evan Jackson Commander, US Central Command
Andrew Howard Special Air Service Forces
Julie White Judy Witwicky
Charlie Adler Starscream (voice)
America Olivo Frisbee Girl
Spencer Garrett Air Force Chief of Staff
Deep Roy Egyptian Guard
Aaron Hill Frat Guy
Alicia Vela-Bailey Stunts
Alex Kurtzman Writer
David Bowe Smithsonian Guard
Cas Anvar Egyptian Interpol Officer
Jeff Lew Animation
Jess Harnell Ironhide (voice)
Matthew Marsden Special Air Service Forces
John Benjamin Hickey Galloway
Reno Wilson Mudflap (voice)
Ehren Kruger Writer
Lorenzo di Bonaventura Producer
Michael Benyaer Egyptian Interpol Officer
John Eric Bentley Aide
Michael Papajohn Cal
Alex Fernandez Joint Ops Staff
Hank Amos Stunts
Kazu Hiro Special Effects Makeup Artist
Roberto Orci Writer
Andrew Hwang Mandarin Blogger (uncredited)
Tom DeSanto Producer
Donna Evans Stunts
Lauren Mary Kim Stunts
Philip Tan Stunts
Sean T. Krishnan Yakov
Erik Aadahl Supervising Sound Editor
Jimmy N. Roberts Stunt Driver
Lin Oeding Stunt Driver
Josh Kelly Strike Force Team
Jessie Graff Stunt Double
Aaron Lustig Reporter
Jeff Okabayashi Second Assistant Director
Don Murphy Producer
Naaman Marshall Art Direction
Denise Chamian Casting
Steve Kelso Stunt Driver
André Sogliuzzo Sideswipe (voice)
Joel Negron Editor
Lisa Lovaas Costume Supervisor
Ethan Van der Ryn Supervising Sound Editor
Jeffrey G. Barnett Stunts