Peter Claver Cullen is a Canadian voice actor. He voiced Optimus Prime in the original 1980s animated series "Transformers", later returning to the role in the "Transformers" media franchise in 2007, starting with the first live-action film. He also voiced many other characters across a variety of popular media, including Eeyore in the "Winnie the Pooh" franchise, Monterey Jack in "Chip 'n Dale: Rescue Rangers", the first voice of KARR in "Knight Rider", and the vocalizations of the title character in "Predator". He also voiced Thaddeus in the animated series "Invincible".

In 2023, he was awarded a lifetime achievement award by the National Academy of Television Arts and Sciences as part of the 2nd Children's and Family Emmy Awards ceremony.

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