Peter Cullen

Peter Claver Cullen (born July 28, 1941) is a Canadian voice actor. He is best known as the voice of Optimus Prime (as well as Ironhide) in the original 1980s Transformers animated series, and most other incarnations of the character. He has also voiced several other characters, including Eeyore in the Winnie the Pooh franchise, Monterey Jack in Chip 'n Dale Rescue Rangers, and KARR in Knight Rider. In 2007, Cullen returned to the role of Optimus Prime in various Transformers media, starting with the first live-action film.

Early life
Cullen was born on July 28, 1941 in Montreal, Quebec, to Henry and Muriel (née McCann) Cullen. He has three siblings: Michaela, Sonny, and Larry. Cullen attended Regiopolis-Notre Dame Catholic Secondary School. He is a member of the first graduating class of the National Theatre School of Canada, which he graduated in 1963. His brother, Larry Cullen, was a retired Captain in the United States Marine Corps, and helped inspire the voice of Optimus Prime.