User blog comment:SirHumanite/John DiMaggio as Darkseid?/@comment-1038387-20120323153019

He's so diverse he can probably voice anyone. But I really want him to do Lobo, if anyone.

As for Darkseid... so far, there are two actors confirmed for season two, Jason Marsden and David Sobolov. And the latter has voiced Darkseid (in the video game Justice League Heroes); he was pretty good, I think.