Before joining the Teen Titans, Robin worked with Batman. He adopted Robin when his parents, The Flying Graysons were killed by a man named Tony Zucco. Through the years of working with the Dark Knight he was greatly trained physically and mentally in ways no other child was. For reasons undisclosed in the show, Robin eventually left Batman in his early teen years for a Western American city known as Jump City, intending to fight crime there alone.
Robin met up with Beast Boy, Cyborg and Raven when Starfire came to Earth and started destroying the city. After a brief yet fierce confrontation where even the Boy Wonder appeared to meet his match, Robin helped Starfire get free from her chains, who then flew away. Robin and the others teamed up to find her, and later fought the aliens who came to find and imprison Starfire, shortly after defeating them, Robin gave the others communicators, and later created the Teen Titans and became the leader.
With his fellow Teen Titans, self-appointed protectors of Jump City, Robin encountered Slade, the mastermind villain who is Robin's arch-rival, responsible for the majority of the villains the Titans clashed with during this time, including the H.I.V.E. and Thunder and Lightning. To defeat him, Robin became his alter ego, Red X, but Slade outsmarted Robin and he nearly lost his life. Later Slade made Robin his apprentice, threatening that he would "annihilate" Robin's friends with nanoscopic probes, which had been injected into them unknowingly while they were diverted, if he refused. Having no choice, Robin joined Slade and committed many crimes in his favour, until finally he teamed up with his friends to bring the villain down.
Afterward, the Titans met Terra, and Robin recruited her into the team. Soon after, she betrayed the Titans to join Slade and was revealed to be his apprentice. In the end, Terra realized her mistakes, and fought against Slade and awakened a dormant volcano. She knocked him into molten lava and sent the evil mastermind to his doom, however Terra was then turned to stone.
In the third season of the show Red X returns, and this time it's not Robin in the suit. Instead of wanting to cause chaos and destroy the city, this Red X only wants Xenothium (a chemical that powers his suit) and to be "number one". Robin takes the blame on himself and goes out to stop X personally. Eventually he is brought back to the lair of a new villain, Professor Chang, and aids Robin with defeating him and freeing the rest of the Titans, though he doesn't take himself as an ally and escapes.
Also in the third season, Robin had been questioning Slade's death. While fighting Cinderblock during a rainy night, Robin is separated from the other Titans and spots Slade. After chasing him down, he learns that Slade had planted three seismic generators that could very easily destroy the entire city. The other Titans eventually meet back up with him and they all split up. While wandering around the forest with Starfire, Robin sees Slade yet again and has a small face-off. In the end, it seems that Robin can only see him. Robin then decides to go solo and hunt by himself. We then see him in Slade's old hideout which self-destructed when Robin's apprenticeship towards him ended. After examining the remains, Robin has a quick talk with Slade. He's convinced that he had been using cloaking devices and fights him soon after. During the mêlée, Robin fails to touch him once. The four Titans track him down to the base, and finds him there, hurt and angry. None of them had found any generators, but Robin doesn't listen to them. After threatening his friends, they have no choice and knock him out. Robin is held down by restraints back in the tower, but eventually escapes after Slade reveals himself in the medical ward he's in. Raven enters his mind where we see him taking to oath to Batman and Robin's parents, The Flying Graysons falling in the circus to their dooms. After being punched out, Raven discovers that Slade isn't there, but Robin believes so and it's destroying him. When it seems like his final moments were coming to an end, Robin figures out that it was all in his mind, he turns on the lights in the basement and Slade disappears for good. It turns out that a chemical agent in the dust Robin accidentally breathed in made him see, hear, and feel Slade despite the fact that he wasn't there. The figure who activated the chemical agent is still at large, and remains undefeated at the very end of the entire series.
During the fourth season, most evident from Birthmark, Robin expresses deep concern for Raven, the one who most fully realizes that there is something she is concealing from the other Titans, saying that they have a bond from the events of Haunted, but Raven declines to tell him initially, saying there were places in her mind one should never go. Robin is shocked when Slade resurfaces against the Titans, but is quick to engage him, though he is defeated along with the other Titans. As Robin is about to be crushed by a structure in the collapsing site, compliments of Slade, a distressed Raven taps into her inner power (or, rather, a birthday "gift" from Trigon) and stops time itself briefly. Raven then escapes with Robin, whose efforts to hold Slade back were met with little avail, instead sustaining great harm at his hand, though recovers sufficiently to save Raven from falling down into the streets, saying to her, "Let's go home," and promises her that while not all may be clear, she is safe for now and the danger is over, to which Raven softly comments that it has "just begun."
Nightwing: Robin's future self.Nightwing has appeared in an issue of Teen Titans Go! In the issue an evil Robin from an alternate dimension teams up with Warp. When the evil Robin is teamed up with Warp, Nightwing from an alternate future somehow comes to Titans Tower and he teams up with the Teen Titans to fight the two villains. Actually, the evil Robin was probably the good Robin, but was brainwashed by Warp. Then after they fight, Starfire whispers something- no one is quite sure what- in Robin's ear and he vanishes. Then at the end of comic, Nightwing goes back to his own timeline and the Teen Titans are seen eating pizza. Then the good Robin comes home not knowing anything about the battle.
Starfire is Robin's love interest throughout the series. She learns little by little the things of earth, usually from Robin. The two get along with each other easily. Robin would do anything to assure Starfire's happiness, even if it doesn't include him. Starfire is very pretty, and boys often try to get a date with her. This infuriates Robin to no end. Robin is even more upset when Starfire (along with Raven) is fawning over Aqualad. In Betrothed, Robin is heartbroken when he finds out Starfire had an arranged marriage, especially to a prince she had never met. In the end, it was Robin who crashed Starfire's wedding, informing her that it was a setup. Starfire's last words of the episode were, "...I shall choose my own husband. Who is to know? Perhaps there is a groom for me on Earth,". Then she continues to walk back to their ship side-by-side with Robin. This forshadows that Robin and Starfire will eventually be together. She cares for her friends so much, she even surrenders the crown of Tamaran to join her friends back to Earth.
In "Date with Destiny", Robin is forced to take Killer Moth's bratty daughter, Kitten, to her junior prom, or else Killer Moth will destroy the city with a swarm of hostile mutant moths. Starfire is jealous out of her mind to have to see Robin with another girl. Starfire puts on a prom dress and shows up at the dance with Robin and Kitten, having found a loophole in Robin's orders to "investigate the girl". Robin is happy to see her, looking her up and down in her beautiful dress. When Kitten arrives in her showy pink limousine, she forces Robin to "take (her) arm and lead (her) in, and would it kill (Robin) to SMILE?!" Seeing Robin holding Kitten's arm, Starfire seethes with jealousy, and is seen grinding her teeth and puching the hood of Kitten's limo so hard that it crumples like a soda can. She watches Robin and Kitten dancing with her envy slowly growing into jealous rage. When Robin is given the ultimatum of either having the city destroyed of having to make out with Kitten, he decides, "Not even if you PAYED me!",and reaches for the trigger which was hidden in Kitten's corsage. As they grab it back and forth, Kitten's ex-boyfriend, Fang, who happens to be a wanted jewel thief, comes up from behind and punches Robin hard, shouting, "Get your hands OFF MY GIRL." As Robin falls to the ground, Starfire shoots a starbolt at Fang, replying, "Get your LEGS off my BOY!"
Robin and Raven understand each other because they have a "bond." When Robin was being tormented by the fake Slade, Raven was able to enter Robin's mind and see the same things that he saw. Robin seems to be one of the few people who can make Raven show her true self, even if she tries to hide it. When Trigon attempted to come to Earth, Robin did everything in his power to stop him (with the rest of the Titans). When Slade first came in "Birthmark", Raven felt responsible for all the times the Titans had tried to protect her.
Robin is not usually a happy person, but able to give Raven enough hope and courage for her to be able to defeat Trigon. She sees him, as well as the other Titans, as family. They've obviously learned different things from each other, whether good or bad. In the end, they appear to have an interesting relationship.
It is obvious that Cyborg's laid-back nature and Robin's serious demeanor often clash on missions. Cyborg doesn't like people telling him what to do, and is often annoyed by Robin's leadership position, possibly because of jealousy. In "Titans East", Cyborg says he is staying with the Titans East because he, "Finally has a team of (his) own; (he is) finally a man now," suggesting that he coveted Robin's leadership position. Cyborg clashes with Robin so much that Cyborg has quit the Teen Titans more than once. The two have a move called The Sonic Boom. Despite their differences, they are close friends, with a mildly competitive relationship.
Robin and Beast Boy are quite different and the two have different personalities. While Beast Boy is free-spirited, carefree and doesn't exhibit much intellectual strength, Robin is very focused, smart and serious. Despite this the two are very good friends, though like the others Robin thinks that Beast Boy's jokes are lame. In The Beast Within, Robin angrily pushes Beast Boy to reveal to them what had transpired when Raven was hurt, demanding he "remember", lest be handed over to the police. Despite their differences, Robin respects Beast Boy and thinks of him as a helpful part of the team.
Slade is a egotistic criminal mastermind who wants to take over the world, and actually took over Jump City itself for a time. From the beginning Robin hated Slade, from the moment he learned his name. Slade had been testing Robin, since he moved to Jump from Gotham (for unknown reasons), testing him to see if he was worthy enough to be his apprentice. It wasn't unitl after Robin took up the Red X persona to lure Slade out into the open did Slade make his move. Robin obsessed over Slade trying to figure out who he was, what his next move was, and how to bring him down. Robin would spend whole night's researching and obsessing until he would finally collapse on his office desk. Robin got aggrivated more easily which made it only easier for the TItans to believe that Robin had become a criminal. After the Titans had chased Slade halfway through the sewers looking for his 'chroton detonator' did Robin track Slade to his hide out alone not knowing of a trap.
After injecting his friends with nanoscopic probes that would kill them with a touch of a button (literally), Robin was forced to become Slades apprentices, taking on a whole new outfit including the mask. Robin constantly fought Slade but when the two weren't rying to connect their fists to each others jaws Slade would say thing like "You'll learn to like it." and "Who knows perhaps I'll become like a father to you?" (may not be exact wording) When Slade said this Robin replied with upmost certainty "I already have a father." with bats flying up and out of the building. After gambling his own and his friends lives they made it all out alive, including Slade who got away.
After that many episodes happened a young girl by the name of Terra appeared becoming a Titan then betraying them and working with Slade. She temporarily got rid of the titans who came back with a vengance. This was the time when Slade took over all of Jump. Terra then temporarily destroyed Slade, in a active volcanoe that was powerful enough to take out all of Jump. Terra, using her powers, stoped the volcanoe,turning herself into stone. After that Robin was infected with a halluscinatious dust that caused him to see, hear, and unfortunatly feel Slade. It almost killed Robin, and forced Starfire to knock him out with a Starbolt. It turned out that the dust that came from Slades mask had to be triggered to activate, saying that someone must have triggered it.
Though the titans were almost sure Slade was gone, he once again shown up after resurrection from Raven's demonic father Trigon. He gave him powers and made a deal with Slade that if Slade helped him deliver 'the portal' he would reward him in his own flesh and blood, (literally). Trigon then double crossed him and teamed up with Robin, being in a weak form Slade needed Robins help to cross throw the underworlds to finds his 'flesh and blood'. In return he would lead Robin to Raven who had dissapeared.After that Slade is only seen once slicing off one of Trigons horn showing the young Raven that her father could be hurt.
Slade then in the last episode of the Cartoon Networks series appeared before Beast Boy telling him that a newly found Terra couldn't remember them or ever having powers because she didn't want to. Beast Boy then destroyed Slade only to find out that it was a realistic Robot that Slade had used many times with Robin.
Though Robin technically possesses no true superhuman powers, his courage, skill, experience, determination and personal strengths are enough to make him a highly formidable adversaries even for those with superhuman abilities. Having undergone an evidently vigorous and intensive training regimen under Batman, perhaps the world’s most skilled hand-to-hand combatant, Robin has exercised physical form to the pinnacle of human perfection, surpassing even the finest of athletes in combat proficiency and power, to such a scale that he has been called a "one-man army" by the Master of Games.
Intimidation: It is known that Robin has the ability to instill fear in others, even the people that know him best can be intimidated by him.
Master Acrobat: Excellent in gymnastics and acrobatics.
Peak Human Conditioning: Through intense training, Robin represents the pinnacle of human physical ability. His physical characteristics are greater than that of even an Olympic level athlete. His strength, speed, stamina, agility, reflexes, durability, senses and coordination are at peak human perfection as possible for one of his age, to improve even further with continued physical and mental growth. Robin engages in intense regular rigorous exercise (including aerobics, weight lifting, gymnastics, and simulated combat) to keep himself in peak condition, and has often defeated opponents whose size, strength, or other powers are much higher than his own. He has spent his entire life in pursuit of physical perfection and has attained it through constant intensive training and determination.
- Peak Human Strength: He is arguably one of the "strongest" Non-metahumans on Earth. He has been seen punching out opponents that are larger than him and that are nearly invulnerable like Cinderblock. In the episode "The Quest", Robin is able to support a large about 800 pound bear guardian on his back.
- Peak Human Reflexes: Robin's reflexes are amazing. He can leap large distances and he can dodge point blank projectile fire and has done so many times in the series.
- Peak Human Speed: Robin is shown to be able to run at above average speed.
- Peak Human Endurance: Robin's endurance is greater than any human shown in the series. Robin can go a long period of time without stopping and fixes himself on his work like in "Haunted" and "X".
- Peak Human Agility: His agility is greater than that of an acrobat. He is shown to be able to scale the city buildings in an acrobatic manner.
- Peak Human Durability: Robin has been shown to be able to handle the worst hits and impacts without giving out.
Martial Arts Master: Robin is one of the finest human combatants on Earth, his skills honed to such a level even superhumans and armed adversaries can be overpowered by them. He has mastered several different martial arts styles from across the world, learned from the Dark Knight. He even knows some alien martial arts as seen in "Sisters".
- Master of Stealth: Robin is a master at stealth, capable of breaching high security facilities with ease and without being detected.
- Expert Marksman: Robin almost never misses a target with his Birdarangs.
- Master Detective: Robin is an expert detective, able to solve cases before anyone else.
- Master Tactician and Strategist: Robin comes up with excellent strategic plans to expose and defeat criminals.
- Escapologist: Robin is shown to be able to escape even the most elaborate of traps.
- Tracking: Robin is shown to be able to pick up a criminal's trail even long after the crime.
- Master of Disguise: Robin's Red X disguise fooled even the Teen Titans.
- Expert Mechanic and Vehicular Driver: Excellent at motorcycle driving. Robin was also responsible for the creation of the high-tech Red X suit, capable of defeating multiple superhumans with ease, and he and Cyborg developed the T-Communicators. He has also used the Tower's own technology proficiently, including its computer and his own laptop.
Robin gets about using his R-Cycle (first seen in "Date With Destiny" chasing after Fang on a one-man pursuit), he proved how well he could drive it as Fang was captured. Unfortunately Johnny Rancid wrecked the R-Cycle. Robin also used a Glider which was built in with his costume, he uses this with his R-Cycle to get up to a high speed and then jumps off to glide. This has a built-in Jet-Pack.
Robin wears a utility belt which houses a variety of projectiles with a vast array of different effects, a retractable bo-staff and a cape made of high-density polymerized titanium that is ten times as strong as steel, and has resilience to various kinds of high-intensity flame, even that generated by superhumans, such as Hot Spot. Robin also possesses discs that can freeze, explode, release obscuring smoke and electronically disrupt. From razor-sharp Birdarangs (capable of combining to form a highly durable sword), grappling hooks, to complex circuitry capable of hacking the most intricate of portable computer systems, Robin almost always has the perfect tools for many different situations. Robin also possesses unknown sword, which he has only used once, in the The End, where he needed to defeat a small swarm of fire demons while tracking down Raven.
Unlike most other superhero television series, the Teen Titans characters maintain their superhero identities at all times, though the series hints at the concept of an alter ego or secret identity but rarely explores it. The Titans have even been seen sleeping in their costumes.
In particular, some fans debated which Robin leads the Teen Titans, although it was recently revealed in Teen Titans Go! #47 that Robin's secret identity is in fact Dick Grayson. Many times throughout the animated series, however, it is strongly implied that Robin is Dick Grayson:
- In "Fractured", Robin's alternate dimensional counterpart Larry gives as his real name nosyarG kciD ("Dick Grayson" spelled backwards).
- In "How Long is Forever?", where Starfire is thrust into the future, Robin has taken on Grayson's identity of Nightwing.
- In "Haunted" when Raven goes into Robin's mind, there is a short memory of two acrobats falling from a trapeze, a reference to how Dick Grayson became Robin.
- In "X", Red X pulls Robin's mask, and his flesh goes with it as if glued on (a cartoon sequence); in the comics Dick Grayson as Nightwing admitted to using a type of glue to get his mask to stay on.
There was a reference that suggested Robin was Tim Drake in the Static Shock episode "Hard as Nails" when Batman tells Static that Robin was with the Titans. However, the Robin to which Batman was referring was Tim Drake, and this said episode aired several months before Teen Titans Began