Figure I ought to throw this out there before sitting down and making the character sheet, the character I plan on playing out of the three I was deciding between, The Faceless Hunter (aka Chun Yull), is a very weird alien villain from the Silver Age. I don't plan on making him very goofy (he's a pretty serious character, just has that silver age corniness about him), and I definitely don't intend to be comic relief, but he is a bit of an odd character as a default.
So question @Byrd Man: is that going to go against the tone you're looking for? I'd definitely be able to make him more serious than he's originally portrayed, but I can totally understand if a faceless alien warlord from the silver age isn't a good fit.
EDIT: Forgot to mention I'd also be reducing how many powers he has, since he was a prime example of the early Silver Age mindset of "give the villain whatever powers he needs for the story to work."
Yeah I'd recommend going a slightly different route.
Also, Vertigo, Onomatopoeia, and Grifter are approved.