Peter Cullen, Voice Actor Legend Behind Optimus Prime, Passes Away at 85 Peter Cullen, a legendary voice actor known for bringing Optimus Prime to life in the Transformers franchise, died on September 20, 2021, at 85.
His distinctive baritone voice and commanding presence made him an instantly recognizable figure in animation and beyond.
Life and Career of a Voice Actor Legend Cullen's six decade career spanned film, television, and video games. He worked on notable franchises such as G. I.