Space Ghost is a character created by Alex Toth of Hanna-Barbera Productions. He started out as a superhero who, with his sidekicks Jan, Jace and Blip, fought villains in outer space. In 1994, he was retooled as a fictional talk show host on Adult Swim's Space Ghost Coast To Coast.
Space Ghost has been voiced by two people and they are: George Lowe, Jr. on Space Ghost Coast To Coast while Gary Owens did his voice in the 60's series. Gary Owens reprised the role in an episode of Batman: The Brave and the Bold.