Shia LaBeouf (Sam Witwicky), Josh Duhamel (Captain Lennox), Megan Fox (Mikaela Banes), Rachael Taylor (Maggie Madsen), Tyrese Gibson (USAF Master Sgt. Epps), Jon Voight (John Keller), John Turturro (Agent Simmons) more..., Anthony Anderson (Glen Whitman), Peter Cullen (Optimus Prime (voice)), Mark Ryan (Transformers (voice)), Hugo Weaving (Megatron (voice)), Kevin Dunn (Ron Witwicky), Michael O'Neill (Tom Banacheck), Julie White (Judy Witwicky), Amaury Nolasco (ACWO Jorge "Fig" Figueroa), Bernie Mac (Bobby Bolivia), Colton Haynes (Cafe Kid), Brian Stepanek (Sector Seven Agent), Frederic Doss (SOCCENT Op-Centre Tech), Michael Bay (Guy Flicked by Megatron (uncredited)), John Robinson (Miles), Odette Annable (Socialite), Zack Ward (First Sergeant Donnelly), Travis Van Winkle (Trent DeMarco), Peter Jacobson (Mr. Hosney), Glenn Morshower (Colonel Sharp), Chris Ellis (Admiral Brigham), Samantha Smith (Sarah Lennox), Rick Gomez (Sheriff), Tom Lenk (Analyst), Michelle Pierce (Socialite), Darius McCrary (Jazz (voice)), Robert Foxworth (Ratchet (voice)), Jess Harnell (Ironhide / Barricade (voice)), Reno Wilson (Frenzy (voice)), Charlie Adler (Starscream (voice)), Tom Everett (National Deputy Directory of Operations (uncredited)), Scott Peat (Pentagon Watch Commander)

Steven Spielberg (Executive Producer), Tom DeSanto (Producer), Don Murphy (Producer), Lorenzo Di Bonaventura (Producer), Roberto Orci (Screenplay), Alex Kurtzman (Screenplay), Ian Bryce (Producer) more..., Brian Goldner (Executive Producer), Mark Vahradian (Executive Producer), Mitchell Amundsen (Director of Photography), Jeff Mann (Production Design), Paul Rubell (Editor), Glen Scantlebury (Editor), Tom Muldoon (Editor), Steve Jablonsky (Music), John Frazier (Special Effects), Deborah Lynn Scott (Costume Design), John Rogers (Story), Janet Hirshenson (Casting), Michelle Lewitt (Casting), François Audouy (Art Direction), Beat Frutiger (Art Direction), Sean Haworth (Art Direction), Kevin Kavanaugh (Art Direction), Rosemary Brandenburg (Set Decoration), Larry Dias (Set Decoration), Edouard F. Henriques (Makeup Department Head), Mitchell Ray Kenney (Costume Supervisor), Anthony J. Scarano (Costume Supervisor), Jane Jenkins (Casting), Michael Bay (Executive Producer), Jimmy Almeida (Animation), Larry White (Animation), Alex Kurtzman (Story), Roberto Orci (Story), Geoff Hubbard (Supervising Art Director), Kenny Bates (Co-Producer), Allegra Clegg (Co-Producer), Matthew Cohan (Associate Producer), Luca Marco Paracels (Associate Producer) and others.