Peter Cullen, the legendary voice actor who brought Optimus Prime to life across more than four decades of Transformers projects, has died. He was 85.
Cullen died Wednesday at his home in Los Angeles, his agent confirmed. A cause of death has not been announced. His family said Cullen died peacefully surrounded by loved ones.
Born in Montreal in 1941, Cullen built a prolific voice acting career, but his unmistakable performance as Optimus Prime ultimately became his defining role.
Cullen first voiced the heroic leader of the Autobots in the original Transformers animated series beginning in 1984. His deep, commanding performance helped turn Optimus Prime into one of the most recognizable characters in animation and pop culture.
More than two decades later, Cullen returned as Optimus Prime for Michael Bay’s 2007 live-action Transformers movie. He continued voicing the character throughout the live-action franchise, including Transformers: Revenge of the Fallen, Dark of the Moon, Age of Extinction, The Last Knight, Bumblebee and Transformers: Rise of the Beasts.
Peter Cullen voice of Optimus Prime
Cullen’s career extended far beyond Transformers. He provided the voice of Eeyore in numerous Winnie the Poohprojects and created the distinctive vocalizations of the Predator in the 1987 Arnold Schwarzenegger film Predator. He also voiced characters including K.A.R.R. in Knight Rider and Thaedus in the animated superhero series Invincible.
His work as Optimus Prime earned Cullen generations of fans and eventually a place in the Transformers Hall of Fame. In 2023, he was also honored with the Children’s & Family Emmy Lifetime Achievement Award for his contributions to the entertainment industry.
Cullen’s family asked fans to honor his legacy through compassion, integrity, loyalty and service to others, invoking the philosophy that became closely associated with both Cullen and Optimus Prime: being “strong enough to be gentle.”
Few voice performances have become as inseparable from a character as Cullen’s Optimus Prime. For millions of Transformers fans, his voice wasn’t simply part of the franchise. It was Optimus Prime.
