Shia LaBeouf

Sam Witwicky

Megan Fox

Mikaela Banes

Peter Cullen

Optimus Prime (voice)

Hugo Weaving

Megatron (voice)

Tony Todd

Fallen (voice)

Josh Duhamel

Major Lennox

Tyrese Gibson

USAF Chief Master Sergeant Epps

John Turturro

Simmons

Ramón Rodríguez

Leo Spitz

Kevin Dunn

Ron Witwicky

Julie White

Judy Witwicky

Isabel Lucas

Alice

John Benjamin Hickey

Galloway

Matthew Marsden

Special Air Service Forces

Andrew Howard

Special Air Service Forces

Michael Papajohn

Cal

Glenn Morshower

General Morshower

John Eric Bentley

Aide

Erin Naas

Arcee Rider

Rainn Wilson

Professor Colan

Katie Lowes

April the Resident Assistant

Jonathon Trent

Fassbinder

Walker Howard

Sharsky

America Olivo

Frisbee Girl

Aaron Hill

Frat Guy

Jareb Dauplaise

Frat Guy

John Sanderford

Pundit

Christopher Curry

Pundit

Cas Anvar

Egyptian Interpol Officer

Michael Benyaer

Egyptian Interpol Officer

Deep Roy

Egyptian Guard

Spencer Garrett

Air Force Chief of Staff

Ralph Meyering Jr.

NORAD General

Aaron Norvell

Air Force Military Police

Eric Pierpoint

NSA Officer

Annie Korzen

Simmons Mom

Sean T. Krishnan

Yakov

David Bowe

Smithsonian Guard

Aaron Lustig

Reporter

Jim Holmes

Reporter

Cornell Womack

FBI Director

Alex Fernandez

Joint Ops Staff

Casey Nelson

Joint Ops Staff

John Nielsen

USS Roosevelt Captain

Rick Cramer

Diego Garcia Soldier

Arnold Chun

Diego Garcia Soldier

Marvin Jordan

Diego Garcia Soldier

Marc Evan Jackson

Commander, US Central Command

Josh Kelly

Strike Force Team

Joel Lambert

Strike Force Team

David Paul Olsen

Strike Force Team

Geoff Reeves

Strike Force Team

Mark Ryan

Jetfire (voice)

Reno Wilson

Mudflap (voice)

Jess Harnell

Ironhide (voice)

Robert Foxworth

Ratchet (voice)

André Sogliuzzo

Sideswipe (voice)

Grey DeLisle

Arcee (voice)

Charlie Adler

Starscream (voice)

Frank Welker

Soundwave / Devastator / Reedman (voice)

Tom Kenny

Wheelie / Skids (voice)

Calvin Wimmer

Wheelbot (voice)

John Di Crosta

Doctor (voice)

Michael York

Prime #1 (voice)

Kevin Michael Richardson

Prime #2 / Skipjack (voice)

Robin Atkin Downes

Prime #3 (voice)

Jenn An

Astronomy Student (uncredited)

Alexandra Begg

College Student (uncredited)

Caitlin Dulany

CNN Reporter (uncredited)

Matt Iseman

C-17 Pilot (uncredited)

Shayna Ryan

French Cafe Patron (uncredited)

Karina Michel

Reporter (uncredited)