Peter Cullen

Peter Claver Cullen (born July 28, 1941) is an American voice actor who served as an announcer for Toonami durring most of it's run, being referred to as the "Big Guy". The most prominent characters he has voiced in his career are Eeyore from the Winnie-the-Pooh franchise and Optimus Prime (as well as Ironhide) in the original 1980s Transformers animated series. More recently, he has reprised his role as Optimus Prime in Michael Bay's live-action Transformers film series, as well as the video games;" Transformers: War for Cybertron and Transformers: Fall of Cybertron, and the new TV series, Transformers: Prime.