After his capture by Space Ghost and subsequent employment in Space Ghost Coast to Coast, he is given the job of director and producer. He apparently carries out his duties through the use of a joystick, which seemingly controls all aspects of the show. He and Zorak frequently make fun of Space Ghost for his ineptitude, and likewise are frequently blasted by Space Ghost's powerbands.
He is happily married to a woman named Linda. His father was a professional wrestler who regularly fought against Leonard Ghostal, the grandfather of Space Ghost. He has attempted (sometimes successfully) to escape Ghost Planet on several occasions.
Moltar is a big fan of CHiPs and Erik Estrada. When Erik finally appears on the show, Moltar makes up a list of questions for Space Ghost to ask him. Moltar similarly creates questions for William Shatner in his time on the show.
Moltar has a contentious relationship with both Space Ghost and Zorak. He gets upset on how he is not introduced at the beginning of the episodes by Space Ghost and how his action figure is being sold for half price at the local comic book store in comparison to Zorak. In the episode "Chinatown," Space Ghost "trades" Moltar to a Japanese baseball team for a producing dog named Rags, former Major League Baseball players Mookie Wilson, Omar Moreno, and a bag of cats. Also in the episode "Baffler Meal," he is angry about how he is not featured on the Space Ghost collectors cups while Space Ghost, Zorak, Brak, and NASCAR driver Rusty Wallace are.
Moltar was the host of Toonami in its early days as a CGI character, introducing programming from his control room at "Ghost Planet Industries" (the fictional location where Space Ghost Coast to Coast was filmed in Atlanta, Georgia). He was eventually superseded as the host of Toonami by TOM, and his broadcasting spaceship, the Absolution.