Slade

Slade Joseph Wilson (aka Deathstroke the Terminator), or commonly referred to just as Slade, is the archenemy of the Teen Titans, and also is the arch-nemesis of Robin. He has his first speaking debut as the main antagonist in Teen Titans Go! to the Movies, voiced by Will Arnett.

History
Slade, best known as the world's greatest enemy, is the Teen Titan's greatest enemy, particularly Robin's, who will stop at nothing to destroy them. Although he was the primary villain in the original Teen Titans series, Slade did not make any actual appearances in Teen Titans Go! until "The Titans Show".

Slade makes a brief appearance in the comic Silicon Valley Cyborg. When Robin asks Cyborg if he can be the VP of security, Cyborg tells him that he has already given the job to Slade. And with that, Slade sneaks up behind Robin and smacks him on the head.

Throughout the show there are small, brief hints of Slade, such as on Robin's punching bag in "The Date". Slade has also affiliated with some other characters in the Teen Titans Go! series. Like, Terra (possible apprentice/servant) and Rose Wilson (daughter).

He finally makes a full speaking appearance in the feature film, Teen Titans Go! to the Movies, where he disguises himself as a movie producer, Jade Wilson and creates tons of superhero movies in order to keep the heroes busy while he steals tech from all the cities they protect for his mind control device.

While attempting to obtain a crystal power source for his device, the Titans attempt to stop him, seeking him to be their arch nemesis so they can obtain their own movie as well, but using "Mind Manipulation" (really just simple tricks, such as the rubber pencil and pulling your thumb off trick), he swiftly defeats and insults them as he leaves.

Later on, he arrives at Wayne Tech to infuse the crystal's power and the Titans arrive to stop him once again, this time putting up an actual fight. They secure the crystal and store it in the tower vault, but Slade escapes, resolving to split Robin from his teammates.

Later, disguised as Jade, he invites the Titans to Hollywood and announces that he will make a movie about them due to their recent fight. While Robin is given a tour of the premises, Raven, Beast Boy, Starfire and Cyborg venture out and cause mischief. They find a Doomsday Machine that is heavily guarded by the heroes and try to destroy it, but "Jade" arrives and reveals that D.O.O.M.S.D.A.Y., is just a terrible acronym for a new streaming service for the new movies. He resolves to drop the rest of the Titans from the film and make it solely about Robin, which he happily accepts, much to the consternation of his team, who wish him luck.

During a scene where Robin interacts with the Titan Tower vault door panel, a light falls and knocks him out. He awakens and finishes the scene where Slade reveals his disguise and his plan, while getting the crystal back, destroying the tower as he leaves.

Later, during the Robin movie premiere, the Titans expose Slade to the other heroes, but Slade unleashes the crystal's power to control the other heroes and sends them after the Titans. Robin goes after Slade while the rest of the team leads off the heroes. However, Slade uses his device to control Robin, and tells him to attack his friends who show him the rest of the movie they made for him. Robin comes to his senses, and the team attacks Slade together. However, Slade pulls out his back-up plan, a giant robot.

When he questions how they will defeat him, Robin tells him that it doesn't matter if everyone thinks they're a joke, because they're happy with each other. They then perform the same rap song from the movies beginning, but this time, they work together to take down Slade and destroy his machine, who admits that the rap was too dope for him before he passes out.

Season 1

 * The Date (cameo as a punching bag)
 * Terra-ized (possibly on the phone with Terra)
 * Colors of Raven (cameo as punching bag)
 * Más y Menos (cameo as punching bag)

Season 2

 * Cool School (referenced by his daughter)
 * The Return of Slade (mentioned, cameo)

Season 3

 * I'm the Sauce (stick figure)
 * The Fourth Wall (archive footage)
 * The True Meaning of Christmas (mentioned)
 * Wally T (mentioned)
 * The Titans Show (in person debut, cameo)
 * The Cape (flashback from previous series)

Season 4

 * The Streak (cameo)
 * Costume Contest (cameo as a mask worn by Ravager)
 * The Self-Indulgent 200th Episode Spectacular (cameo as Lego figurine)

Film

 * Teen Titans Go! to the Movies (speaking debut)

Comics

 * Party Party (cameo on cover)
 * Silicon Valley Cyborg (comic debut, cameo)
 * May I Have This Trance? (cameo on cover)
 * TV or Not TV Part 2

Other Media

 * Teen Titans

Terra
Slade sent Terra to infiltrate and destroy the Teen Titans. Terra posed as Beast Boy's girlfriend in order to get the Titans most sensitive files. Terra ends up battling Raven. Terra ends left in another dimension alone for months.

Ravager
Slade's daughter, Rose Wilson, is a well known thief. She seems to not be impressed with her father's high level of crime. Even though he bought her two swords that she uses often. This implies that their relationship is similar to Raven and Trigon's.

Teen Titans
TBA

Trivia

 * At the Teen Titans Go! Comic Con panel in 2013, Teen Titans Go! 's creators stated that they wanted to use Slade and Blackfire for the series, but they were unsure if they would be able to. However, Blackfire has appeared in the Season 2 Episode "Mr. Butt", and Slade was mentioned in the episode "The Return of Slade".
 * The writers of the show have stated that they can use Slade, and they want to use Slade for the series, but are not sure how to use him because he is such a dark and serious villain to work into the show's silly format, which is odd because they somehow worked Trigon into the show (who is also suppose to be a dark and serious villain).
 * They eventually inserted him as a in-person cameo in "The Titans Show".
 * Slade has been finally confirmed to have a major role in the series in the theatrical released film Teen Titans Go! to the Movies, voiced by Will Arnett. However, this replaced his previous series' voice actor, Ron Perlman.
 * Ron Perlman voiced Slade in the original series. Perlman reprised his role in the 2013 direct-to-video release Justice League: The Flashpoint Paradox.
 * He was one of the primary antagonists of the original series and was one of only two villains to appear in all five seasons (the other being Gizmo). Slade and Red X are the only villains to not be captured at the end of the series.
 * In this series, The H.I.V.E. Five replaced Slade as the main antagonists.
 * He is also one of only two villains in the original show to switch sides (the other being Jinx). However, once his "revenge" was complete, he continued to be an enemy of the Teen Titans.
 * Slade's role in the first animated series is somewhat different from depictions in the comics, in the sense that he is a pure evil criminal mastermind, rather than a prominent mercenary who only leans evil and sometimes even fought for the Titans. However, he was willing to work for others if it benefited him (as he did with Trigon, before the demon betrayed him).
 * The arrow in the Slade doll could be a reference to the CW's hit TV show Arrow, in which Slade is the main antagonist of the second season and recurring character throughout the series.
 * Slade's character basis "Deathstroke" was the inspiration for the famous Marvel comics anti-hero Deadpool, the similarity between the two is made fun of in Teen Titans Go! to the Movies.
 * He did not appear in the digital download of Silicon Valley Cyborg for an unknown reason.
 * He was teased to appear in "The Return of Slade", but was only mentioned and his head and mask were shown.
 * A Teen Titans Go! version of Slade appeared on an alternate cover of Deathstroke issue number 8.
 * He is the twenty-seventh villain from the original series to debut in Teen Titans Go!.
 * He is the only villain from the original series to debut in Season 3.