Source: comicvine.gamespot.com

7. The Privateer

Hee hee. The Privateer.

Mark Shaw was incensed that he couldn’t do as much good as he wanted to in his job as a lawyer, so he went for the obvious next step: Contact a bunch of space robots and ask if he could do what they do. So he did that.

Unfortunately, he didn’t know that the space robots he’d contacted, The Manhunters, were secretly EVIL space robots. He even failed to realize this after his robot pals instructed him to murder the Justice League, which would be about when I’d put two and two together. He did figure it out soon after, but then decided that he was a mad guy now, and he was okay with that.

This is when he became the Star-Tsar, an ID that left him to team up with The Key to finally answer the question Which Justice League villains are just top to bottom the worst? He began calling himself The Privateer, and worked with the Justice League until his secret evil ways were revealed and his sabotage attempt was foiled.