Highlights
- Peter Cullen's voice reached far beyond Optimus Prime.
- Some of his most surprising roles came in beloved animated favorites.
- His vocal range allowed him to move effortlessly between heroes, villains and comic characters.
- One of his biggest roles was not even a cartoon character.
Peter Cullen may always be remembered as the voice of Optimus Prime, but his career stretched across some of the most recognizable films, television shows and animated franchises of the past five decades.
The Canadian actor, who died at age 85 on August 26, built a remarkable career by disappearing into his characters. His deep, commanding voice became synonymous with the leader of the Autobots, while an entirely different performance made Eeyore one of the most recognizable characters in the Winnie the Pooh universe.
But those are only two parts of Cullen's legacy. From Dungeons & Dragons and G.I. Joe to My Little Pony and Chip 'n Dale: Rescue Rangers, his voice appeared across several generations of children's entertainment.
Here are 10 roles that show just how familiar Peter Cullen's voice may have been without audiences even realizing it.
1. Eeyore from Winnie the Pooh
Eeyore is arguably Cullen's most famous role outside Optimus Prime.
He began voicing the gloomy donkey in The New Adventures of Winnie the Pooh in 1988 and continued playing him across numerous Disney productions. His deliberately slow, melancholy delivery became an essential part of Eeyore's personality.
What makes the performance especially memorable is how different it sounds from Optimus Prime. Where the Autobot leader speaks with authority and conviction, Eeyore sounds permanently exhausted by life.
Cullen's ability to make both characters instantly recognizable was a testament to his range. The New Adventures of Winnie the Pooh marked the beginning of a decades-long association with the character.
2. Venger from Dungeons & Dragons
Cullen was not always playing the good guy.
He voiced Venger, the principal villain of the animated Dungeons & Dragons series, which ran during the 1980s. The role allowed him to use his naturally imposing voice for a character who was considerably more sinister than Optimus Prime.
For viewers who knew Cullen primarily as a heroic Autobot, Venger offered a very different side of his vocal talent.
3. Monterey Jack from Chip 'n Dale: Rescue Rangers
Cullen also became the voice of Monterey Jack, the adventurous mouse from Chip 'n Dale: Rescue Rangers.
The character was another departure from Optimus Prime, with Cullen adopting a more energetic and eccentric performance.
It was exactly the kind of role that demonstrated why his voice could be so difficult to place. The actor could completely alter his delivery while retaining the vocal control that made his performances so distinctive.
Cullen's association with the character extended beyond the original series, with him returning for the 2022 film Chip 'n Dale: Rescue Rangers.
4. Grundle from My Little Pony
Fans of My Little Pony may be surprised to discover Cullen among its voice credits.
He voiced Grundle in My Little Pony: The Movie, released in 1986, alongside several other roles during the franchise's early years.
It is another example of how frequently Cullen appeared in the animated films and television shows that defined children's entertainment during the 1980s.
5. Ironhide from Transformers
Optimus Prime was not Cullen's only Transformers character.
He also voiced Ironhide, the tough Autobot warrior, in the original animated series and The Transformers: The Movie. Cullen also voiced several other robots across the franchise.
So even within the world that made him famous, Cullen's contribution went beyond the character most audiences associate with his name.
6. Zandar from G.I. Joe
Cullen's voice was also part of G.I. Joe: A Real American Hero.
He voiced Zandar and other characters connected to the franchise, adding another major 1980s children's property to his extensive list of credits.
For a generation raised on animated action series, Cullen was therefore a familiar presence even when his name was not.
7. Coran from Voltron
Cullen also lent his voice to Voltron, another hugely popular animated franchise from the 1980s.
His work on the series included Coran, as well as other roles, giving him another opportunity to create characters that sounded markedly different from Optimus Prime.
His presence across these shows reveals just how much of the decade's animation landscape was populated by Cullen's performances.
8. The Predator from Predator
This one is a little less obvious because Cullen was not playing a traditional children's character.
He supplied the distinctive vocal effects for the Predator in the 1987 Arnold Schwarzenegger film. The clicking, otherworldly sounds became one of the creature's defining features.
It remains one of the most unusual entries in Cullen's filmography and a reminder that his work extended well beyond conventional dialogue.
9. King Kong
Cullen's voice work even extended to one of cinema's most famous monsters.
He provided the vocal performance for King Kong in the 1976 film and returned for King Kong Lives in 1986.
Unlike a conventional acting role, the performance required Cullen to create a character almost entirely through sound, making it another fascinating example of his ability to give personality to a largely nonverbal figure.
10. KARR from Knight Rider
Before Cullen became permanently associated with Optimus Prime, he also provided the voice of KARR, the sinister prototype and counterpart to KITT, in Knight Rider.
The role once again used his deep voice for an imposing character, but with a much darker edge.
It also became another example of Cullen's ability to make an artificial character feel as though it had a distinct personality.
Peter Cullen's voice was everywhere
Optimus Prime may have been the role that defined Peter Cullen, but it does not come close to telling the whole story.
His career crossed animation, live-action film, television and video games, with characters that could be heroic, funny, frightening or deeply melancholic.
That versatility is perhaps why so many of his performances could become part of audiences' childhoods without the audiences necessarily knowing the actor behind them.
Cullen's name may have been less familiar than Optimus Prime's, but his voice was already part of popular culture.
