Deathstroke

Slade Wilson is a mercenary and assassin for hire with no qualms about crossing lines to get the job done, no matter where those lines are drawn.

A formidable operative for the U.S. military, Col. Slade Wilson agreed to undergo an experimental process that increased his mental and physical abilities to superhuman levels. Rather than continue his career as a soldier, Slade became the masked mercenary Deathstroke. This decision resulted in his wife leaving him and his son Joseph being permanently injured, as well as the death of his son Grant, who sought to emulate Slade.

Over the years, Slade has fought many DC superheroes, particularly the Teen Titans, and even been incarcerated, only to escape. He has also occasionally worked with Earth’s heroes and the U.S. government to protect the planet or serve what he considers to be a greater good. But despite his occasional heroics, Slade Wilson ultimately defers to whatever benefits himself, finding loopholes in his own code of honor to justify betrayal and manipulation.

For more on Deathstroke's history, visit his page on DCUniverse.com.