Optimus Prime Facts

Peter Cullen, the voice actor who voices Optimus Prime, also voices Eeyore from Winnie the Pooh.

Peter Cullen almost voiced Optimus Prime like a shouting Hollywood tough guy. His brother Larry was a Marine Corps captain who served in Vietnam. Cullen has said that before his 1984 audition, Larry told him real heroes don't yell: "Be strong enough to be gentle." That advice became Optimus Prime's voice for more than 40 years.