The Comedian
From: DC Comics
For the longest time, The Watchmen was essentially separated from DC Comics. Writer Alan Moore wrote the comics to sort of be their own standalone series, where they did not fit into the mainline universe. However, some of the characters might remind you of major DC characters. Today though, they are part of the mainline universe. The Watchmen team was certainly not known for their light work with bad guys. Although they did many heroic things, they also went far beyond this. Perhaps the person who went too far the most is The Comedian. Though the name might sound like he’s some sort of Joker-like clown, he certainly wasn’t.
He was made to sort of appear like a Captain America type that went in the wrong direction, towards more of a Peacemaker territory. The Watchmen logo, the smiley face with a bullet hole, is essentially The Comedian’s calling card. Comedian did not mind going above and beyond the call of duty, but he also seemed to also cross lines one cannot come back from. This included ending the life of U.S. President John F. Kennedy (or so he claims) among other major figures. It seemed The Comedian could never escape war mode after the Vietnam War ended. He remained in government work but enjoyed the protection that afforded him too much.