Peter Claver Cullen is a Canadian voice actor. He is best known as the original voice of Optimus Prime (as well as Ironhide) in the original 1980s Transformers animated series and Eeyore in the Winnie-the-Pooh franchise. Starting in 2007, Peter Cullen has reprised his role as Optimus Prime in all Transformers related media, starting with the first live-action film.
In the Lion episodes of Voltron: Defender of the Universe, he voices Coran, King Alfor, and the narrator. In the Vehicle episodes he voices Commander Hawkins.