|Real name||Slade Wilson|
|Voiced by||Ron Perlman|
|“||I am the thing that keeps you up at night, the evil that haunts every dark corner of your mind.... I will never rest. And neither will you.||”|
–Slade encountering Robin
Slade (known as Deathstroke in the original DC comics) is the Teen Titans' most recurring and elusive archenemy, who wants them destroyed for his own unknown reasons.
Deathstroke also appears in the Teen Titans animated series, where he is referred to only as Slade due to censorship issues. He is the Titans' main adversary and was the primary antagonist for the first two seasons. His main goal is to "destroy" the Titans and conquer the city and quite possibly the world, for unknown reasons—though it is possible he is simply a criminal with ambitions of power and has no ulterior motives. He has had two secret bases, which were both destroyed. He also seems to have a massive army of robotic commandos and incredible strength, enough to leave a dent in solid steel with one hit.
Interestingly, when presented with an opportunity to kill all five of the Titans after Robin infected himself with the nanobots, he chose not to kill them. Why is not known.
Slade arrived in the FusionFall Universe when Larry, an Extradimensional Denizen, brought over the Titans, Slade, and Red X. The imp had intended to bring over only the Titans, but accidentally brought along their greatest enemy.
Almost immediately, Slade began hiring assassins to hunt down and kill Red X, after Red X decided to escape Slade and stop following his orders. Starfire has separated from the Titans to find Red X and Slade before they do any real damage or hurt others.