Director: Michael Bay
- Charlie Adler (voices Starscream)
- George Coe (voices Que)
- Patrick Dempsey (Dylan Gould)
- Jess Harnell (voices Ironhide)
- Rich Hutchman (Engineer)
- Ravil Isyanov (Voshkod)
- Ken Jeong (Jerry Wang)
- Leonard Nimoy (voices Sentinel Prime)
- Keith Szarabajka (voices Laserbeak)
- Hugo Weaving (voices Megatron)
- Frank Welker (voices Shockwave, Soundwave)
- Jimmie Wood (voices Crowbar)
- Peter Cullen's favorite moment in the film is when Optimus Prime meets with astronaut Buzz Aldrin.
- Despite the rumors of a feud between Megan Fox and Michael Bay, it was actually Steven Spielberg who had Fox fired from this film (after she compared Michael Bay to Nazis). Bay was already prepping Fox for this film when she was forced to drop out.
- According to Visual Effects Supervisor Scott Farrar, Sentinel Prime was physically modeled on Sir Sean Connery, and the role of Sentinel was offered to Connery but he turned it down. Sentinel quotes the "there can be only one" line from Connery's film Highlander (1986).
- According to Michael Bay, 532 vehicles were destroyed in the film. They were given away by an insurance company, at no charge, as all of them were flood-damaged.
- In 2011, Alan Tudyk told "Empire" magazine that his character from 28 Days (2000) (the gay German performance artist, Gerhard) was the same character as the one Tudyk later played in this movie: "I decided that it's the same guy. He had gotten out of rehab, got himself on the right track and then... entered the Army, became a specialist, found that he had skills in computers and weapons. Then he got burned out after too much killing, and just decided to become a valet to Agent Simmons. There's a moment where he just goes crazy, and I say, 'That's the old me' and that was all based on that bullshit idea that it was the same guy."
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