"We were once a peaceful race of intelligent mechanical beings. But then came the war, between the Autobots who fought for freedom, and the Decepticons who dreamt of tyranny. Over matched and outnumbered, our defeat was all but certain. But in the wars final days, one Autobot ship escaped the battle. It was carrying a secret cargo, which would have changed our planets fate. A desperate mission. Our final hope. A hope, that vanished."

"[Has just blown a Decepticon away] We will kill them all."

"Greg Berg as Igor"

"Keith Szarabajka as Laserbeak"

"Ron Bottitta as Roadbuster"

"John DiMaggio as Leadfoot"

"George Coe as Que (credited as "Que/Wheeljack")"

"Francesco Quinn as Dino (final film voice role)"

"James Remar as Sideswipe"

"Hugo Weaving as Shockwave/Soundwave"

"Robert Foxworth as Ratchet"

"Jess Harnell as Ironhide"

"Charlie Adler as Starscream"

"Reno Wilson as Brains"

"Tom Kenny as Wheelie"

"Frank Welker as Megatron"

"Leonard Nimoy as Sentinel Prime"

"Peter Cullen as Optimus Prime"

"Elya Baskin as Cosmonaut Dimitri"

"Glenn Morshower as General Morshower"

"Ken Jeong as Jerry Wang"

"Alan Tudyk as Dutch"

"Lester Speight as Hardcore Eddie"

"Frances McDormand as Charlotte Mearing"

"John Malkovich as Bruce Brazos"

"Julie White as Judy Witwicky"

"Kevin Dunn as Ron Witwicky"

"Patrick Dempsey as Dylan Gould"

"Tyrese Gibson as USAF Chief Master Sergeant Robert Epps"

"John Turturro as Agent Seymour Simmons"

"Josh Duhamel as U.S. Army Lt. Colonel William Lennox"

"Rosie Huntington-Whiteley as Carly Spencer"

"Shia LaBeouf as Sam Witwicky"

"I love this car."

"[About her brother, who was killed in Afghanistan while serving in the British Army] What do you think, Sam? You think we'd rather have his medals or we'd rather have him?"

"Years from now, they're gonna ask us: where were you when they took over the planet? And we'll say: we just stood by and watched..."

"Rich bastards. I used to hate 'em!"

"Tell Megatron: let's tango."

"[To Sam] With all due respect, young man, I appreciate what you did. But you're not a soldier; you're a messenger. You've always been a messenger."

"[On coming out of retirement to fight the Decepticons again] Because that asshole killed my friends too."

"That’s my car!"

"[To the boss at his new job] Mister, I saved your life twice. I can't tell you how, or when, or why, but I have done shit that matters and I'd just kinda like a job where I matter again."

"[Closing line] In any war, there are calms between storms. There will be days when we lose faith. Days when our allies turn against us. But the day will never come that we forsake this planet and its people."

"You're just as much of a failure as I am, and just as afraid... Well, I used to fight my fears. But now that I've tasted its true power, I'll NEVER GO BACK!"

"Parallax - Clancy Brown"

"Kilowog - Michael Clarke Duncan"

"Tomar-Re - Geoffrey Rush"

"Amanda Waller - Angela Bassett"

"Sinestro - Mark Strong"

"Abin Sur - Temuera Morrison"