Peter Cullen, Voice of Optimus Prime and Eeyore, Dies at 85
- by Alexa Villano
- August 28, 2026
For Gen X and Millennial parents, Peter Cullen’s voice was part of growing up — from the courage of Optimus Prime to the gentle sadness of Eeyore
For a lot of Gen X and Millennial parents, one voice narrated childhood: the steady, reassuring baritone of Optimus Prime, and just as often, the soft, mournful drawl of Eeyore. That voice belonged to Peter Cullen, the Canadian actor who died on August 26 at 85, according to confirmation from his agent and family.
News of his passing landed in a week already heavy with loss for entertainment fans, following the deaths of Tim Curry and Dolly Parton, and tributes from across the industry have been pouring in ever since.
The Leader of the Autobots
Cullen’s most iconic role was Optimus Prime, leader of the Autobots in the Transformers franchise, a part he voiced across the original 1980s cartoon and, decades later, the live-action film series. He also lent his voice to other characters in the show, including Prime’s loyal ally Ironhide.
In interviews over the years, Cullen credited his older brother Larry, a Marine, as the real inspiration behind Prime’s calm authority — the idea that true strength doesn’t need to shout.
Paramount, which produced the Transformers films alongside Hasbro, honored Cullen in a statement mourning the loss of a man whose Optimus embodied courage and humanity for generations of fans. Hasbro echoed that sentiment, remembering him as a devoted family man and a friend to many, offering condolences to his loved ones and to the millions of fans grieving alongside them.
Eeyore, and the Kids Who Loved Him
If Optimus Prime was Cullen’s hero, Eeyore was his heart. The gloomy, gentle donkey from the Winnie the Pooh franchise became one of his most beloved roles, and Cullen often spoke about how delighted young fans were to learn he was the voice behind the character — lighting up the moment he’d greet them in Eeyore’s familiar, world-weary tone.
A Career Bigger Than One Franchise
Cullen’s range went well beyond Transformers and Winnie the Pooh. In the Voltron franchise, he voiced the narrator, Coran, King Alfor, and Commander Hawkins, work the Voltron team remembered warmly, calling him part of their universe from day one and thanking him for being their narrator, advisor, and king.

He also narrated Saber Rider and the Star Sheriffs, where he voiced Commander Eagle and several villains, and appeared in the 1986 Ghostbusters as Eddie Spencer Jr. and Sr. His other credits include Monterey Jack in Chip ‘n Dale: Rescue Rangers, G.I. Joe, The Jetsons, Dino-Riders, Murky Dismal in Rainbow Brite, and KARR in Knight Rider — a resume spanning more than four decades and countless childhoods.
Till All Are One
For today’s parents, Peter Cullen isn’t just a name in the credits. He’s the voice that shaped how a generation understood courage, gentleness, and loyalty long before they had words for any of it. No one will replace him — but that voice isn’t going anywhere.
Till all are one, Peter.
Frequently Asked Questions
Peter Cullen was a Canadian voice actor best known for voicing Optimus Prime in the Transformers franchise and Eeyore in Winnie the Pooh. His career spanned more than four decades and included numerous beloved animated series and films.
Peter Cullen was 85 years old when he died on August 26. His death was confirmed by his agent and family.
Peter Cullen voiced many memorable characters throughout his career, including Optimus Prime, Eeyore, Ironhide, Monterey Jack from Chip ‘n Dale: Rescue Rangers, and KARR from Knight Rider. He also worked on Voltron, G.I. Joe, The Jetsons, Rainbow Brite, and other popular shows.
Peter Cullen gave Optimus Prime the calm, reassuring, and compassionate voice that made the character beloved by generations of fans. He said the character was inspired in part by his older brother Larry, a Marine, who taught him that true strength did not need to be loud.
For many Gen X and Millennial parents, Cullen’s characters were a major part of childhood. From Optimus Prime’s courage to Eeyore’s quiet vulnerability, his work now gives parents an opportunity to share a piece of their own childhood with their children.
Tributes
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