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

Peter Cullen dies at 85 after a six-decade career that made his voice inseparable from some of entertainment’s most recognizable characters. Cullen, best known as the voice of Optimus Prime in the Transformers franchise and Eeyore in numerous Winnie the Pooh productions, died August 26 at his home in Los Angeles, according to his representative.

The actor’s death was confirmed by his agent, Kevin Motley, who said Cullen died at his Los Angeles home. The Associated Press reported the confirmation and a statement from Cullen’s family asking fans to honor his legacy through compassion, integrity and service to others. A cause of death had not been publicly disclosed.

Peter Cullen gave Optimus Prime his defining voice

Cullen first voiced Optimus Prime in the syndicated Transformers animated series that debuted in 1984. His calm, authoritative delivery became one of the franchise’s defining elements, and he later returned to the role across television, games and the live-action film series.

Hasbro, the company behind the Transformers brand, published an official tribute to Peter Cullen on August 27. The company credited his performance with shaping how generations of viewers understood Optimus Prime as a figure defined by courage, sacrifice and leadership.

The character was informed by advice Cullen received from his older brother Larry, a Marine veteran who served in Vietnam. Cullen had explained over the years that when he told his brother he was auditioning to play a hero, Larry encouraged him to approach the character with dignity rather than exaggerated toughness.

That idea became central to Cullen’s version of Optimus Prime. Hasbro recalled the advice in its tribute, noting that Cullen brought compassion and restraint to a role that could easily have been played as a conventional action hero.

Cullen returned when Transformers moved to live action

More than two decades after the original animated series premiered, Cullen returned as Optimus Prime for Michael Bay’s 2007 live-action Transformers film. He continued voicing the Autobot leader through multiple theatrical installments and most recently performed the role in 2023’s Transformers: Rise of the Beasts.

Variety’s report on Cullen’s death noted that his association with the character extended from the original 1980s series through decades of later Transformers productions.

The longevity of that performance was unusual even within voice acting. Cullen was not simply brought back for a nostalgic appearance. His voice remained a fundamental part of Optimus Prime’s identity as the franchise expanded into blockbuster films, television projects and games.

Hasbro’s tribute reflected that relationship, describing Cullen’s interpretation as an expression of the qualities he carried personally rather than simply a character performance.

Eeyore showed another side of Peter Cullen’s voice work

Although Optimus Prime became Cullen’s most famous role, his career extended well beyond Transformers. He also voiced Eeyore in numerous Disney Winnie the Pooh productions, giving the perpetually gloomy donkey a distinctive low-key delivery for generations of viewers.

Cullen’s credits also included work on The Smurfs, G.I. Joe, Chip ‘n Dale: Rescue Rangers and Knight Rider. He provided creature vocal effects for the 1987 science-fiction film Predator and contributed vocal work to the 1976 version of King Kong.

The Los Angeles Times also confirmed Cullen’s death and highlighted the contrast between the heroic authority of Optimus Prime and the melancholy personality of Eeyore.

That range helped make Cullen one of the industry’s most recognizable performers despite spending much of his career working behind animated characters, creatures and machines.

A voice acting career spanning six decades

Cullen was born in Montreal in 1941 and trained at Canada’s National Theatre School. His professional career included radio, television comedy and announcing work before voice acting became the field most closely associated with his name.

His work ultimately earned industry recognition including a Lifetime Achievement Award at the Children’s & Family Emmy Awards in 2023. The honor came nearly four decades after he first stepped into the recording booth as Optimus Prime.

The Washington Post reported that Cullen’s representative said he died peacefully at home and shared the family’s request that people remember him by leading with compassion, integrity and loyalty.

For audiences who first encountered Optimus Prime as children in the 1980s and for younger viewers who later discovered the character through the live-action films, Cullen’s voice remained remarkably consistent. It became a bridge between different generations of the franchise.

Hasbro closed its tribute with a phrase familiar to longtime Transformers fans: “Till all are one.” For Cullen, whose performance helped establish Optimus Prime as one of animation’s enduring heroes, the tribute reflected a relationship between actor and character that lasted for more than 40 years.