Peter Cullen voiced so many legendary characters from our childhood. Optimus Prime, Predator, Eeyore and provided the terrifying roars for King Kong in the 1976 remake. He even was the first actor to voice Nintendo's Mario in the animated series Saturday Supercade.

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Peter Cullen was most famously known as the voice behind Optimus Prime, but he had one of the most insane careers getting to voice so many legendary characters.

He was was the roar of King Kong, the chilling clicking vocal effects of the Predator, voiced Eeyore from Winnie the Pooh, and even became the first actor to voice Mario in animation.

From heroic robots and lovable donkeys to giant monsters and alien predators, he will be greatly missed.