Frank Welker

Frank Welker is a prolific American voice actor. He voiced various characters in LEGO Dimensions and its various other related media, including, in terms of those relavant to this wiki's coverage, the titular character of the Scooby-Doo franchise, and Slimer and Stay Puft from the Ghostbusters franchise.

He is probably also well-remembered for being the original voice of the evil Megatron in the Transformers franchise.