G. Gordon Godfrey is Glorious Godfrey from the comics, so yes, he's a Supervillain. In the comics, his powers are the same as Zviad Baazovi, the Ambassador of Markovia, in the show, persuasive mind control, and that's probably what they'll reveal in the show since it would explain why so many people watch his show.
FYI, he's one of Darkseid's elites alongside Granny Goodness and Desaad.