"Heroes? Frank Welker, Frank Welker and Frank Welker. He is hands down my most giant hero in the animation VO community. He is an amazingly gifted genius. He can create every sound that you might hear in a jungle: the drip of the raindrops, the wind rustling in the trees, and all of the inhabitants that you might encounter there. I love animals. I mean I love animals and Frank's great ability is that not only can he make the sounds of the animals; he can give them a true voice. I've done episodes of cartoons that had an environmental bent focusing on things like ivory poaching, global warming. He portrayed a mother elephant being torn from her baby by ivory poachers for her tusks. The mother's cry and the baby's anguish were all there in Frank's voice. Captain Planet did a show centering on puppy mills and what he did in that show... there wasn't a dry eye in the house. I've heard him do dozens of sensitive performances through the years and he always, always delivers something so special and unique and moving."
Franklin Wendell Welker (born March 12, 1946) is an American voice actor. He is responsible for a broad spectrum of character voices, and other vocal effects that have appeared over the last 40 years in American television and motion pictures.Welker is listed as the number one "All Time Top 100 Stars at the Box Office," not as a box office draw, but in terms of the total revenue generated by the films in which he has participated, for the sheer number of voices he has done — over 1,200 — ranging from his work on Scooby-Doo to the present day. (In fact, besides The Movie and the 1988-91 series A Pup Named Scooby-Doo where Carl Stevens did the voice, he has been the only voice of Freddy since the beginning.) Go look him up on IMDB. Depending on your monitor resolution and DPI settings, his resume is anywhere from 50-60 pages long. It'd be easier to list the works where he hasn't performed...As it should be, Welker's reputation is astounding and alongside Mel Blanc, he is likely the most famous voice actor in the world. He is revered as a god by many in the industry. Welker's ability goes beyond creating human voices and he is often cast as animals and used for animal vocals, where he has an uncanny talent at imitation. If the movie or show has any sort of budget and it has a regular animal character, he probably does the voices for it.Welker hasn't been entirely on animated shows, either. Animal sounds or otherwise "beastly" characters in live-action work also keep him in high demand. As an interesting side note, he provided the voice of a screaming Spock in Star Trek III: The Search for Spock, while Leonard Nimoy took on the role of Galvatron (an altered Megatron) in Transformers: The Movie. Welker also cameoed in The Informant as the father of Matt Damon's character.Largely because of the demand of his animal voice work, Welker more often plays a side character than the Hero. His most famous high-profile work has been Scooby-Doo as Freddy (and Scooby since Don Messick's death), The Transformers as Megatron and Soundwave, and more recently the voice (both speaking and non-speaking) of Nibbler in Futurama.One interesting little story about Welker is that he was nearly included in some cartoon's credits for voice work, until the guys remembered that no, they'd used an actual horse. He's just that ubiquitous. In terms of voice acting, he's a bit of a Memetic Badass.
The Transformers - He did a lot of voices on that show, including most of the first year Decepticons. In fact, the only first-year Decepticons he didn't voice were Starscream, Reflector (both Chris Latta), Shockwave (Corey Burton), and Thundercracker (John Stephenson). Most remember Welker as the voice of Megatron and Soundwave. He also took over the role of Galvatron after Leonard Nimoy voiced him in the movie.
Transformers film series - Soundwave, Devastator, Grindor, Ravage, Reedman (Ravage's nanobots), Shockwave, and Barricade. He also voiced Megatron in the video games instead of the movie voice actor Hugo Weaving.
He also voices Megatron for the Transformers ride at various Universal Studios theme parks... and he cut radio ads so that Megatron could threaten you directly from your car.
Transformers Prime - Megatron (with a fantastic display of Vocal Evolution) and several additional voices, as well as reprising the role of Soundwave when the character talks in "Minus One".