[Phantasm]

For the next batch, I've decided to delve into the cast and crew of Captain Marvel (Mar-Vell).

In short, Year One of this title will have two phases: Mar-Vell in his superhero career in and around Cape Canaveral, Florida, while officially spying on Earth (and most notably the United States space program) for the Kree Empire, and a later space opera phase where Mar and his lover, Una, are refugees from Kree justice in the greater galaxy as they work to halt a looming invasion from Mar's commanding officer.

I've got the space opera phase pretty nearly handled, but the earlier phase is lacking. Most notably, I've only really got one super-villain for Mar-Vell to fight - Nitro (notorious for being the character who gave Captain Mar-Vell the lung cancer that killed him in the comics).

So, I could use some ideas for super-villains for Mar-Vell to fight. Ideas?