
Age: 80
male
Franklin Wendell Welker (born March 12, 1946) is an American voice actor with an extensive career spanning nearly six decades. As of 2021, Welker holds over 860 film, television, and video game credits, making him one of the most prolific voice actors of all time. With a total worldwide box-office gross of $17.4 billion, he is also the third highest-grossing film voice actor of all time. Welker is best known for voicing Fred Jones in the Scooby-Doo franchise since its inception in 1969, and Scooby-Doo himself since 2002. In 2020, Welker reprised the latter role in the CGI-animated film Scoob!, the only original voice actor from the series in the movie's cast. He has also voiced Oswald the Lucky Rabbit in Epic Mickey and its sequel, Megatron, Galvatron and Soundwave in the Transformers franchise, Shao Kahn and Reptile in the 1995 Mortal Kombat film, Curious George in the Curious George franchise, Garfield on The Garfield Show, Nibbler on Futurama, the titular character in Jabberjaw, Speed Buggy in the Scooby-Doo franchise, Astro and Orbitty on The Jetsons, Mushmouse on Punkin' Puss & Mushmouse, and various characters in The Smurfs as well as numerous animal vocal effects in many works. In 2016, he was honored with an Emmy Award for his lifetime achievement. Description above from the Wikipedia article Frank Welker, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Frank Welker

Megatron
for Megatron in Sonic and the Turtles ROLL OUT (1999)
Suggested by autobotsonicfan2007

Sonic and his team where on the search for his mother Aleena to win back Mobius when a strange portal took them to another world known as Earth! On Earth, the heroic Teenage Mutant Ninja Turtles were celebrating both the new millennium and the 5-year anniversary of finally defeating Shredder when there was a sighting of a blue spiky alien, which was Sonic. The turtles went to investigate when they were attacked by jets that turned into robots, known as the Decepticons! Sonic and Tails gave them a hand, and all six of the heroes' actions were futile until the selfless Autobots came to the rescue. As they make the triple alliance of the end of the century, little do they know that Shredder, Krang, and their evil mutants Bebop and Rocksteady, had survived! And Krang's alliance with Megatron and Robotnik has enabled him to create an army of millions upon millions of transforming Technodromes! But it seems there is more to Megatron and Krang's alliance than meets the eye.