The Autobots continue to work for NEST, now no longer in secret. But after discovering a strange artifact during a mission in Chernobyl, it becomes apparent to Optimus Prime that the United States government has been less than forthright with them.
Shia LaBeouf
as Sam Witwicky
Rosie Huntington-Whiteley
as Carly
Peter Cullen
as Optimus Prime (voice)
Leonard Nimoy
as Sentinel Prime (voice)
John Turturro
as Simmons
Frances McDormand
as Mearing
Josh Duhamel
as Lennox
Tyrese Gibson
as Epps
Patrick Dempsey
as Dylan
Hugo Weaving
as Megatron (voice)
John Malkovich
as Bruce Brazos
Kevin Dunn
as Ron Witwicky