The entertainment world is facing another heartbreaking loss this week. Peter Cullen, the legendary voice actor best known for bringing Optimus Prime to life in Transformers — and beloved by Disney fans as the voice of Eeyore in Winnie the Pooh — has died at the age of 85.
\n\nAccording to his agent, Cullen died on Wednesday, August 26, at his home in Los Angeles. His cause of death has not been disclosed. His family shared that he passed peacefully, surrounded by loved ones, and remembered him not only for his remarkable career but for the values he carried throughout his life.
\n\nThe Voice Behind Optimus Prime
\n\nCullen first became widely known for portraying Optimus Prime in the original Transformers animated series during the 1980s. His performance helped establish the character as far more than a giant robot — Optimus became a leader defined by honor, responsibility, compassion, and strength, and Cullen's deep voice became inseparable from that identity.
\n\nHe later returned to the role for the live-action Transformers film franchise, introducing his iconic performance to an entirely new generation. Cullen also reprised Optimus Prime across numerous animated productions and other Transformers projects throughout his career, making him one of the most enduring voice performers ever associated with a single character. For many fans, there was simply no separating Cullen's voice from Optimus Prime.
\n\nDisney Fans Knew Him as Eeyore
\n\nBut Cullen's career was never limited to robots. One of his most beloved performances came from the Hundred Acre Wood.
\n\nCullen voiced Eeyore in Winnie the Pooh, giving the character his signature dry, gloomy, quietly funny personality. His interpretation of Eeyore became one of the defining performances associated with the character and remained familiar to Disney fans for decades. That connection makes his passing particularly poignant for Disney audiences.
\n\nEeyore has long been one of the most recognizable characters in the Winnie the Pooh universe. His voice was not loud or flashy — instead, Cullen created a character who could make audiences laugh simply through timing, delivery, and understated pessimism. For children who grew up watching Winnie the Pooh, that voice may immediately bring back memories of Saturday mornings, VHS tapes, Disney movies, television specials, or trips to the Disney parks.
\n\nIt is one of the unusual qualities of voice acting: an actor does not necessarily have to appear on screen for audiences to form a deep emotional connection with them. Sometimes, a voice is enough.
\n\nA Career That Went Far Beyond Two Iconic Characters
\n\nCullen had an extraordinarily broad résumé. He voiced Predator in the 1987 film Predator, another role that demonstrated how much personality he could create through voice alone. He also played Monterey Jack in Chip 'n Dale: Rescue Rangers, KARR in Knight Rider, and Mario in the original Donkey Kong animated series — and those credits barely scratch the surface of his career.
\n\nCullen worked consistently across animation, television, movies, and video games, becoming one of those performers whose work could be heard almost everywhere even when audiences did not recognize his face. Peter Cullen was rarely the celebrity standing in front of the camera. He was the person behind the character who made that character memorable.
\n\nModern Notoriety took to Instagram to pay tribute, writing: