Cullen back as Optimus Prime: "Autobots...transform and roll out!"

This is definitely good news for fans of the "generation 1" Transformers...Peter Cullen, the voice of Optimus Prime from Sunbow Productions' animated "Transformers" series from 1984-87 (as well as the 1986 animated "Transformers: The Movie"), will be reprising the role in the upcoming, Michael Bay-directed live action/CGI "Transformers" feature.

From Superherohype.com:

The original voice of Transformers ' Optimus Prime, Peter Cullen, will also voice the character in Paramount's anticipated big screen adaptation. Cullen made the announcement over the phone during the studio's presentation at the San Diego Comic-Con today.