|“||I'm supposed to be one of the good guys, to always do the right thing. The line is supposed to be clear, but for me, back then it wasn't. A madman was threatening the city and I had to stop him. So I became Red X. A ruthless thief who could get closer to the madman than Robin ever could. But I didn't tell my teammates and my plan didn't work. I almost lost my life... and my friends. It was the closest I ever come to crossing the line. And I thought it was in the past, but now someone else has crossed that line and it's my job to stop him.||„|
|~ Robin's story about Red X.|
|“||Not everybody likes to play the big villain, kid. I'm a thief. I'm not threatening your precious city, just looking out for number one.||„|
|~ Red X|
|“||Kid, you are taking life way too seriously.||„|
|~ Red X's opinion on Robin.|
Red X is a recurring antagonist and anti-hero in the Teen Titans series. Originally an alias Robin used to get closer to Slade, an unknown person took up the Red X identity after stealing the suit and used it to become a professional thief.
He was voiced by Scott Menville who also voices Robin.
|“||Better luck next time kid. And thanks for the suit.||„|
|~ Red X to Robin.|
His mask consists of a white skull, which has no lower jaw, on a black full-face mask and a red x starting on his forehead and with a point of the x is ending beneath his right eye. The eyes are white reflective lens, which seem to act like Robin's mask as making facial changes to his actions, and are outlined in black.
The new wearer of this outfit is shown to be of similar built yet a couple inches taller than Robin.
|“|| Robin: I thought you didn't like playing the hero?|
Red X: Doesn't mean I don't know how.
|~ Red X and Robin fighting together as a team.|
On the other hand, despite being a self-serving robber, he is not without heroic qualities. He rarely preforms acts of true evil and, when the time comes for him to use his powers to prevent disaster, he tends to rise to the occasion. In his initial appearance, in the episode "X", he ends up helping Robin against Professor Chang and freeing the rest of the Titans. Later, in "Revved Up", he enters the race for Robin's personal secret, but, after Robin saves his life, he repays the favor by taking out the other villains participating in the race and disappears right afterwards. He has since become one of the most popular characters to have appeared on the series.
Red X started out as an evil alter-ego of Robin so he could get close to Slade and know about his plans. But in a later season, someone stole the Red X suit and decided to wear it and become a thief.
Red X (Robin)
When the Teen Titans first encountered an army of Slade's robots, Robin want to figure out who he was, and what he was planning. So he created an evil alter-ego to figure out Slade, but in the process, Robin almost crossed the line between good and evil, and almost lost his friends.
2nd Red XAfter Robin quit being the Red X, the suit was never seen for some time. Until someone stole the suit and decided to wear the suit and become a thief. He only stole stuff so he could look out for what he considers as Numero Uno. But when Raven, Cyborg, Starfire, and Beast Boy were kidnapped by Professor Chang, Red X decided to help Robin take out Chang. But he only did this to steal the Xenothium to power up his suit. However Robin anticipated this so he managed to take Red X's belt. X manage to steal one tube of the Xenothium and used it to create a distraction and manage to escape from the Titans.
Red X made another appearance, and became a member of Brain's Brotherhood of Evil. When Ding Dong Daddy manage to steal something precious from Robin. Because it was valuable to Robin, all the Teen Titan villains teamed up and tried to steal it from DDD, while preventing the Teen Titans from getting the Briefcase, including Red X. However near the end of the episode, Red X saw in Robin's eyes that it was really valuable to him and decided to take out the other villains that wanted the briefcase. What happened to Red X is unknown. During the fight between the Teen Titans and the Brotherhood of Evil, Red X wasn't spotted, it's likely that he left the Brotherhood after the Ding Dong Daddy race.
- Superior Attributes: Physically, Red X is an accomplished acrobat and martial arts fighter on par with Robin. He has superior/enhanced strength, speed, stamina, endurance, reflexes, and agility. In fact, their combat techniques/proficiency are quite similar, giving weight to the common suspicion that both once had the same tutor (which would be Batman).
- Red X Suit Applications: Most of Red X's powers are derived from his suit's belt. The belt relies on power from a (possibly artificial) element called Zynothium. The suit is also fitted with an invisibility or cloaking device, and a teleportation device. The red 'X's located on his gloves can be used to form constructs, such as shurikens, wrist-mounted blades, restraints (by constriction or adhesion), timed explosives, instant openings, or any other conceivable function. Robin noted that he created Red X's main weapon systems as specific ways to beat each of his fellow Titans.
- Teleportation Utility Belt: In the episode "X", Robin reveals to Red X that he secretly swiped his belt, to which Red X compliments him before smashing the Zynothium tube he had on the ground, and diving off a nearby cliff of Chang's hideout to escape; however, in Red X's next appearance, he somehow had stolen it back , as he is shown using his suit's powers again. In the episode "Revved Up" he participates in a race set up by Ding Dong Daddy, with the prize being a briefcase containing precious contents to Robin.
- It's been hinted that Red X really is Jason Todd, Robin's adopted brother from the Batman comic book series, as his name appears on Beast Boy's whiteboard "theory" of Red X's true identity.
- There is other evidence in the show for Red X being Jason Todd – specifically his explosives skill, acrobatics skill, knowledge of the Robin and the Titans, as well as his self-serving and violent tendencies.
- Another theory is that Red X could be Speedy, a hero and fellow Teen Titan. What enforces this Theory is that in an episode of Teen Titans Go! titled "The Date", Speedy went out on a date with Starfire, and in the episode of the original series titled "X", Red X briefly flirted with the Latter.
- Red X may also be an alternate name for Jason Todd's Red Hood, similar to Deathstroke using the name Slade, possibly to downplay the connection to his comic book counterpart for the purpose of mystery or suspense.
- In the Teen Titans Go! comic, it was briefly shown that Red X had a daughter known as Pink X. It was later revealed that this was really Killer Moth's daughter Kitten in disguise.