Peter Cullen, the Voice Behind Optimus Prime, Passes Away

Sun Sep 06 2026 01:36:44 GMT+0000 (Coordinated Universal Time)

Canadian voice actor Peter Cullen, famed for his roles as Optimus Prime and Eeyore, dies at 85, leaving a legacy that spanned decades of iconic animation.

Peter Cullen, the iconic Canadian voice actor who brought Optimus Prime and Eeyore to life, has died at 85. His career launched with Canadian radio and television before a decisive shift to voice work that earned him legendary status in Transformers, Winnie the Pooh, and countless other series. Cullen earned a Daytime Emmy nomination and a 2023 Children’s & Family Lifetime Achievement Award, and he honored his brother with a share of his earnings. His passing occurred peacefully at his Los Angeles home, surrounded by family and loved ones. Fans and colleagues remember him as a gentle yet powerful presence in the world of animation.

Peter Cullen, the Voice Behind Optimus Prime, Passes Away

Canadian voice actor Peter Cullen, best known for his deep, powerful portrayal of Optimus Prime in the original 1984 Transformers TV series and the later Hollywood films, died at the age of 85. Cullen’s work also famously voiced the gloomy donkey Eeyore in Disney’s Winnie the Pooh franchise, among many other voices in animated classics.

His career began on Canadian radio and television, and after a stint on shows like The Sonny & Cher Show he turned to voice acting, where he found lasting fame. He voiced the conflicted KARR in Knight Rider, the silent rattle of the Alien Predator in 1987’s film, and even the roar of King Kong in the 1976 adaptation.

Cullen’s Optimus Prime voice was inspired by his older brother, a Vietnam War veteran, who urged him to portray “a real hero, don't be a Hollywood hero”—a lesson that resonated and shaped the character’s gentle strength. He even paid a portion of his Optimus earnings to his brother upon the character’s death.

He earned a Daytime Emmy nomination for outstanding performer in an animated programme in 2011 and was honoured with a lifetime achievement award at the Children’s & Family Emmy Awards in 2023.

Cullen died peacefully at his home in Los Angeles on Wednesday, surrounded by family, according to a statement. The message emphasized spreading kindness, integrity and leadership—“be strong enough to be gentle”—as he asked his loved ones to honour his legacy.

Peter Cullen stands smiling in front of a Transformers logo backdrop.

His Impact on Animation

Beyond Optimus and Eeyore, Cullen voiced characters in popular series such as Spider‑Man, Chip 'n Dale Rescue Rangers, My Little Pony, Duck Tales, and Gummi Bears, earning a reputation as a versatile and beloved voice artist.