Source: dccomicsnews.com

8. Chronos (Walker Gabriel)

(DC Comics)

No, not that one.

Walker Gabriel (no, I didn't mix up his first and last names) was a thief who became friends with David Clinton, the original Chronos. Walker stole a time machine from STAR Labs, vanished into the timestream, and went on tons of fun adventures. Chronos bounced around through time in his solo series, which was one of those canceled-too-soon, coulda-been-something-big comics. People loved it. But after it was canceled, he never really did anything else.

Grant Morrison seems to like him. He popped up in Multiversity and Final Crisis: Superman Beyond 3D. He also showed up once in the Geoff Johns JSA run. In that one, Per Degaton, on a plan to rid the world of time travelers, went back in time and made sure that a car struck and killed ten-year-old Walker. Thus erasing all of the things I've written about so far. Harsh.

Why Wasn't He Bigger: I mean, he's not super interesting. If you want to do a time-travel story in the DC Universe, you could instead use Booster Gold or Rip Hunter, who are far better characters.