The origin of Super Villains: Deathstroke

https://en.wikipedia.org/wiki/Deathstroke

Deathstroke (Slade Joseph Wilson) is a fictional supervillain appearing in American comic books published by DC Comics. He is a mercenary and assassin who serves as the archenemy of the Teen Titans, specifically Dick Grayson. Over the years, writers have developed him as an adversary of other superheroes in the DC Universe as well, such as Batman and Green Arrow.

Deathstroke has been ranked as the 24th Greatest Villain of All Time by Wizard magazine, and as the 32nd Greatest Comic Book Villain of All Time by IGN.[1][2] The character has been substantially adapted from the comics into other media, including several Batman-related projects and the Teen Titans animated series, voiced by Ron Perlman in the latter. In live-action, he has been portrayed by Manu Bennett on The CW's television series Arrow and Esai Morales in the second season of DC Universe series Titans. Joe Manganiello portrays the character in the DC Extended Universe, beginning with a cameo in the 2017 film Justice League.

Created by Marv Wolfman and George Pérez, the character was introduced as "Deathstroke the Terminator" in The New Teen Titans #2 in December 1980. Christopher J. Priest said:[3]
[N]ot only was Marv’s Deathstroke a villain, he was also kind of an asshole, which I thought was unique. He wasn’t some misunderstood anarchist; he deliberately did skeevy things - most notably sleeping with Terra, a presumably underage girl - in his quest to exact revenge against his enemies. I read that and went, “Whoa". This was beyond The Joker, well beyond Lex Luthor. Marv created the first modern supervillain. He broke every rule by making Deathstroke three-dimensional and giving him internal conflicts while maintaining a level of skeeve we weren’t used to seeing from a typical 2-dimensional bad guy.

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