Before voicing Optimus Prime, Peter Cullen played KARR, a sinister robotic car, in the 1980s live-action series Knight Rider.
Peter Cullen Played a Robotic Villain in This Beloved '80s Live-Action Sci-Fi Show
Before voicing Optimus Prime, Peter Cullen played KARR, a sinister robotic car, in the 1980s live-action series Knight Rider.
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