/Film on MSN
How Optimus Prime Got His Iconic 'Gentleman's' Voice Instead Of Being A Yelling Drill Sergeant
In various interviews, Transformers voice actor Peter Cullen revealed how he came up with the distinct sound of Optimus Prime ...
Chris Hemsworth chats with ET’s Cassie DiLaura about how his family helped him prepare to voice autobot Optimus Prime in ‘Transformers One,’ which hits theaters Sept. 19.
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