Shia LaBeouf

Sam Witwicky

Megan Fox

Mikaela Banes

Mark Ryan

Bumblebee (voice)

Peter Cullen

Optimus Prime (voice)

Hugo Weaving

Megatron (voice)

Josh Duhamel

Captain Lennox

Tyrese Gibson

USAF Tech Sergeant Epps

Charlie Adler

Starscream (voice)

Rachael Taylor

Maggie Madsen

Anthony Anderson

Glen Whitmann

Jon Voight

Defense Secretary John Keller

John Turturro

Agent Simmons

Michael O'Neill

Tom Banacheck

Kevin Dunn

Ron Witwicky

Julie White

Judy Witwicky

Amaury Nolasco

ACWO Jorge 'Fig' Figueroa

Zack Ward

First Sergeant Donnelly

Brian Shehan

Ranger Team

Michael Trisler

Ranger Team

Rizwan Manji

Akram

William Morgan Sheppard

Captain Witwicky

Bernie Mac

Bobby Bolivia

Johnny Sanchez

Clown

John Robinson

Miles

Travis Van Winkle

Trent

Peter Jacobson

Mr. Hosney

Glenn Morshower

SOCCENT Sergeant

Charlie Bodin

SOCCENT Op-Centre Tech

Joshua Feinman

USAF Staff Sergeant

Chris Ellis

Admiral Brigham

Steven Ford

Four Star General

Michael Shamus Wiles

Two Star General

Scott Peat

Pentagon Watch Commander

Colleen Porch

Enlisted Aide

Brian Stepanek

Sector Seven Agent

Jamie McBride

FBI Agent

Wiley M. Pickett

FBI Agent

Andy Milder

R&D Team Leader

Samantha Smith

Sarah Lennox

Ravi Patel

Telephone Operator

Rick Gomez

Sheriff

Colin Fickes

Analyst

Tom Lenk

Analyst

Jamison Yang

Analyst

Esther Scott

Glen's Grandmother

Madison Mason

CNN Reporter

Andrew Lewis Caldwell

Café Kid

J.P. Manoux

Witness

Pete Gardner

Dad

Laurel Garner

Mom in Car

Michael Adams

AWACS Controller

Michelle Pierce

Socialite

Odette Annable

Socialite

Bob Stephenson

Xbox Guy

Darius McCrary

Jazz (voice)

Robert Foxworth

Ratchet (voice)

Jess Harnell

Ironhide / Barricade (voice)

Reno Wilson

Frenzy (voice)

Michael Bay

Guy Flicked by Megatron (uncredited)

Colton Haynes

Cafe Kid (uncredited)

Omar Benson Miller

Glen's Cousin (uncredited)