Scooby Doo is voiced by Frank Welker
Since the new Scooby-Doo movie will be a part of the Hanna-Barbera Cinematic Universe—the first of its kind—it will feature other characters from it, like Captain Caveman (voiced by Tracy Morgan), Dynomutt (Ken Jeong), Dee Dee Sykes (Kiersey Clemons), Blue Falcon (Mark Wahlberg) and Dick Dastardly (Jason Isaacs).