Peter Cullen, the voice of Optimus Prime, has died at 85

Peter Cullen, the voice actor who defined Optimus Prime for multiple generations, has died at age 85. His agent confirmed to TMZ that he passed away Wednesday at his home in Los Angeles. The cause of death is currently unclear.

Cullen originated the role of the Autobot leader in the 1984 animated series The Transformers. He famously modeled the character's gentle but authoritative delivery on his brother Larry, a United States Marine Corps officer. Larry told him that real leaders do not need to yell, and that a true hero is strong enough to be gentle. That advice shaped a performance that established a standard for the character. Cullen maintained that specific tone across television, live-action blockbuster films, and video games for over forty years.

Graduating in the class of 1963

Born in Montreal in 1941, Cullen graduated in the first class of the National Theatre School of Canada in 1963. He started his career in radio and variety television. Before finding his niche in voice acting, he spent years honing his comedic timing on live television. His early credits include work on The Smothers Brothers Comedy Hour and The Sonny & Cher Comedy Hour.

He voiced Eeyore in Disney's Winnie the Pooh franchise for decades, bringing a completely different kind of quiet dignity to the depressed donkey. He took over the role in the late 1980s and continued voicing the character through numerous television shows, direct-to-video movies, and theatrical releases. He even provided the clicking vocalizations for the alien hunter in the 1987 film Predator. He voiced so much across the entertainment industry that almost anyone who consumed media in the late twentieth century has heard his work. He also voiced Ironhide in the original Transformers cartoon, proving he could handle multiple distinct personalities in the exact same recording booth.

Three major video game appearances

When Activision and Hasbro pushed the Transformers franchise into mainstream video games, Cullen reprised his role. He anchored High Moon Studios' Transformers: War for Cybertron in 2010. The third-person shooter explored the civil war on the machine planet before the characters arrived on Earth. He returned for its direct sequel, Transformers: Fall of Cybertron, in 2012. Both games earned strong reviews from critics and players. Cullen treated the video game scripts with the exact same gravity he brought to theatrical films. His delivery in Fall of Cybertron is widely considered one of the best voice performances in the medium. The game tasked him with portraying a desperate leader watching his home world die, and he delivered lines with a heavy, exhausted weight.

He later took on a different style of game with PlatinumGames' Transformers: Devastation in 2015. The fast-paced action game abandoned the gritty look of the High Moon titles for a bright, cel-shaded art style based on the classic Generation 1 aesthetic. The project reunited him with original 1980s cast members, including Frank Welker as Megatron and Dan Gilvezan as Bumblebee.

The television and voice acting industries recognized his massive body of work in December 2023. He received a Lifetime Achievement Award at the Children's and Family Emmy Awards. He is survived by his family. He leaves behind a catalog of performances that shaped the childhoods of millions.