We bring you all the Scooby-Doo Characters you would like to know. Stred by the legendary Matthew Lillard, here is our list of all the Scooby-Doo Cast. Legendary voice actor Frank Welker—the original voice of Fred—has been playing Scooby-Doo for years now and does so here, as well. Will Forte (Shaggy), Gina Rodriguez (Velma), Amanda […]