Activision has confirmed that the all-star cast of the original Transformers Movie game and Shia LaBeouf will be once again lending their voices to Transformers: Revenge of the Fallen.
The cast from the original game makes the transition to the sequel intact, which means that the original voice of Megatron, Frank Welker, will again be stepping into the Decepticon leader's giant metal shoes in place of the film's Hugo "I smell you, boy!" Weaving. We've got Megan Fox as eye candy, Optimus "Peter Cullen" Prime as Optimus Prime, and the rest of the movie bot lineup. In addition, newcomer John Di Maggio joins the cast as Bender Sideways, and James Arnold Taylor takes up the role of The Fallen. Oh, and Shia LaBeouf is in there too. I think he plays Sam Witwicky's little yappy dog.
On a side note, doing a Google image search for Megan Fox is the absolute best way to start your day.