Canadian voice actor Peter Cullen, best known as the longtime voice of Optimus Prime in the Transformers franchise, has died at the age of 85.
Cullen’s agent, Kevin Motley, confirmed his death to The Hollywood Reporter. His family said the actor died peacefully surrounded by loved ones.
“He passed away peacefully, surrounded by his loving family — and held in the hearts of his many friends and countless fans worldwide,” the family said in a statement.
The family encouraged fans to honour Cullen’s legacy by serving their communities and leading others with “compassion, integrity and loyalty,” invoking one of the sentiments closely associated with his portrayal of Optimus Prime: “Be strong enough to be gentle.”
Cullen became the defining voice of Optimus Prime, leader of the Autobots, through his work on the original Transformers animated productions in the 1980s. His distinctive performance became so closely identified with the character that he returned to the role repeatedly over the following decades.
He later voiced Optimus Prime in Michael Bay’s live-action Transformers films, introducing his portrayal to a new generation of audiences and cementing his status as one of the most recognisable voices in animation and science-fiction entertainment.
Beyond Transformers, Cullen had an extensive career in television and voice acting. His work included serving as an announcer on programmes such as The Smothers Brothers Comedy Hour and The Sonny & Cher Comedy Hour, alongside numerous other animated and live-action projects.
His career spanned more than five decades, but it was Optimus Prime — a character defined by courage, compassion and leadership — that became his enduring legacy.
Cullen is survived by his four children.