Peter Cullen, Iconic Voice of Optimus Prime and Eeyore, Dies at 85

Update: 30 August 2026, 9:58:43 AM

Peter Cullen, the prolific voice actor whose work defined generations of animation and film, has died at the age of 85. His agent, Kevin Motley, confirmed that Cullen passed away on Wednesday at his home in Los Angeles. In a statement, his family requested that fans honor his memory by serving their communities with integrity and compassion, urging them to always remember his mantra: “be strong enough to be gentle.”

Cullen’s career was vast, beginning in the late 1960s as an announcer for “The Smothers Brothers Comedy Hour” and appearing in sketches for Sonny & Cher. He later lent his voice to iconic characters in “The Smurfs” and various iterations of “G.I. Joe.” However, he achieved his most enduring fame as the voice of the Autobot leader Optimus Prime in the 1984 “Transformers” series. The character’s influence grew over decades, eventually anchoring a multibillion-dollar live-action film franchise directed by Michael Bay starting in 2007.

Reflecting on his audition for the role, Cullen noted that he initially only knew he was reading for a truck. When he learned the character was a heroic leader, he drew inspiration from his older brother, Larry, a US Marine who served in the Vietnam War. “He was my hero, and he certainly was the mainstay behind the character,” Cullen shared in 2019. “I just did an impression of Larry, and he’s still alive in my mind today because every time I do Prime, there’s my brother Larry.”

Cullen’s authoritative delivery defined the character through numerous films, including “Transformers: Revenge of the Fallen,” “Dark of the Moon,” “Age of Extinction,” “The Last Knight,” “Bumblebee,” and 2023’s “Rise of the Beasts.” He often noted that he held Optimus Prime in a special place in his heart, alongside his other signature role: the melancholic Eeyore from the “Winnie-the-Pooh” franchise, which he voiced from 1988 to 1991. He also provided the voice for the villainous KARR in “Knight Rider” and King Kong in the 1976 remake.

Beyond his vocal performances, Cullen contributed unique sound effects to cinema, most notably the clicking sounds of the alien creature in the 1987 film “Predator,” which he modeled after the sounds of a dying horseshoe crab. His contributions to the industry were recognized with a lifetime achievement award at the 2023 Children’s & Family Emmy Awards, and he received a Daytime Emmy nomination for his work as Optimus Prime in 2011.

At fan conventions, Cullen frequently encountered emotional fans, often noting that parents were sometimes more moved than their children. “I expect that I will run into a father with his son, and the father will more than likely get choked up,” he said before the 2019 MegaCon Orlando. “And then I get choked up, and then the kid is saying ‘What are these two grown men getting choked up about?’”

Cullen is survived by his four children: Angus, Claire, Pilar, and Clay. The report also notes that “You’re always auditioning for something in animation that’s a little off of the norm,” Cullen told the AP in 2019. The report also notes that cullen’s authoritative baritone as Optimus Prime also appeared in 2009’s “Transformers: Revenge of the Fallen” through “Dark of the Moon,” “Age of Extinction,” “The Last Knight,” “Bumblebee” and “Rise of the Beasts” in 2. The report also notes that in another, he intoned: “Fate rarely calls upon us at a moment of our choosing.”. The report also notes that but he struck a nerve as Optimus Prime. The report also notes that it left an indelible mark on pop culture, with a toy line, spinoff cartoon series and comics produced over the next two decades, while the original cartoon ran just a few years. The report also notes that almost operatic lines would be quoted for decades by kids and adults alike: “I am Optimus Prime, and I send this message to any surviving Autobots taking refuge among the stars: We are here, his thoughtful.

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