Intro
Beastboy's secret identity is Garfield Mark "Gar" Logan. He is a shapeshifting hero, in the DC comic universe. He was a former member of the Doom Patrol, and a current member of the Teen Titans. Just to be clear, there used to be another supervillian with the same name who used to be a hero. For unusual reasons he turned evil and was later killed by one of the members of the Doom Patrol. Then when the Beastboy we know and love the appeared the other Beastboy was allowed a last minute death. Somehow making him look like a hero.
Teen Titans Series
Now to get where you wanted to be the whole time, Teen Titans Series. In the series, Beast Boy (nicknamed "BB" and others) plays the role of the light-hearted jokester of the group, though often the butt of many jokes himself (similar to his comics self). He wears a black and purple Doom Patrol uniform, complete with gray gloves and purple sneakers with seemingly velcro straps.[1] The costume also has a mask;[2] he discarded it after Cyborg told him it was goofy, and Raven pointed out that the mask would not hide his secret identity anyway, as since his skin is green, he does not really have one. Beast Boy also has pointy ears, which he finds to be an attractive quality of himself. His appearance is much younger than in the comics. The ears were adapted to the comics in Teen Titans vol. 3. He exhibits very feral habits as well, such as sitting with his feet on his chair and moving his ears up and down. Beast Boy's ability to speak in animal form is normally absent in the series unless taking the form of an animal that can talk, such as a parrot.[3]
Beast Boy is a vegetarian, having transformed into most of the meat-producing animals.[4] (though technically he is a Vegan) He is also prone to causing much of the mischief around Titans Tower, such as the time he kept a large mutant moth larva hidden in his bedroom, whom he named Silkie. In "Can I Keep Him?," the larva devours much of the Tower while the team is on a mission fighting Johnny Rancid. While trying to hide him from the others, Beast Boy entrusts Silkie to Starfire to hide, but she ends up adopting the creature.
Like in the comics, Beast Boy also had a romantic relationship with a girl named Terra who had the ability to control earth and the elements in the earth. As in the comic book, Terra betrays the Teen Titans as an ally of Slade (Deathstroke). Ultimately, she receives redemption in helping the Titans defeat Slade; however, she is turned to stone in the process. In a departure from the comic book, Beast Boy retains strong feelings for Terra, as can be heard in "The End: Part 2" by "Evil Beast Boy" (an evil clone of BB created by Trigon, representing his evil side). In the final episode "Things Change", Beast Boy saw Terra, although it is unclear whether or not it was the real Terra, as he was the only Titan who saw her. Terra may have suffered amnesia when Beast Boy last saw her. The episode was designed to serve in much the way JLUs' second season finale "Epilogue" was designed to wrap up the Batman portion of the DCAU, focusing on one or two central characters and resolving unapproached issues.
In the Season 3 episode "The Beast Within", Beast Boy was seen in a his newly gained "Super-werewolf" form when he was doused with an experimental DNA compound. The Titans had assumed that he had used this form to attack Raven. However, it was in fact Adonis, who had been affected by the compound as well, who attacked her, and Beast Boy was protecting Raven from him. Beast Boy disliked this form and refrained from using it again until he and the other Titans were fighting off Slade's fire-soldier army in "The End: Part 1" when they had to use their most powerful abilities to defeat them. He never used it after then, suggesting that even with the strength and abilities it gave him, he considered it a "last resort" to be used.
Season 5 of Teen Titans focuses on Beast Boy a great deal, as it deals with his history as a member of the animated series' incarnation of the Doom Patrol. Until "Homecoming", in which his former teammates make a guest appearance, Beast Boy was the only member of the Doom Patrol to appear on the show. In the second episode of the fifth season, Beast Boy becomes the first male Titan in the series to be explicitly referred to by his real name (Garfield). In "Titans Together", Beast Boy shows a remarkable amount of leadership skills and leads Herald, Jericho, Pantha, and Más on an assault on the Brotherhood of Evil. He remains leader even after Cyborg, Starfire, Raven, and several other Titans join the fight. Beast Boy only stands down from leadership when Robin is thawed; thus fulfilling his dream (revealed in the episode "Go!") to be Robin's sidekick.
One part of Beast Boy's depiction in the animated series that has garnered attention is his effort to form a connection with his teammate, Raven, going so far as to make a decisive effort to get her to respond to his jokes. His comedic and innocent nature often plays off on Raven's more distant and harsh one, and certain episodes focus on building their friendship.[5].
Beast Boy and Raven were intentionally written by David Slack, Titans head writer, as a "married couple", hence the relationship was one of deep loyalty and affection, but also laced with conflictive personality clashes. The only clear and establshed romantic relationship Beast Boy had in the series however was with Terra, as the series stayed true to the classic Teen Titans comics such as The Judas Contract. This "tough love" relationship between Beast Boy and Raven however is continued in Titans in Tokyo, also written by Slack.
Beast Boy also has an obsession with owning a vehicle of his own, more specifically, a moped. In one episode, he acquires one and affectionately calls it the "B-Ped" and rides with a helmet, goggles and scarf that could be seen as a parody of Haruko and her Vespa from the anime FLCL (Which might be a nod to the more anime-ish aspects of the show). Ironically, after using it to save the world from killer tofu, it falls to pieces. He often has fantasies of impressing girls on a moped, dressed in a stereotypical French style: black and white striped shirt, black trousers, and a beret. Beast Boy jokes about changing his name to Beastman or Beastdude at the end of "The Beast Within" as a response to Raven calling him a man for knowing when to let out his 'Beast Within'.
His background is delved into further in Teen Titans Go #45. When he was younger, Beast Boy fell ill due to being bitten by a green monkey. To save him, his parents attempts to cure him resulted in his shape changing abilities. Later on they died in a flood, leaving Beast Boy as an orphan. Afterwards, Beast Boy determined to join Doom Patrol broke into their quarters. He was treated as an intruder, but his effort to escape capture impressed them, thus earning his membership on the team.
It should also be noted that Beast Boy shows high intelligence at times. A good note would be the episode 54- Homecoming 2 where he was able to override a computer in the brains fortress and rewrite the coordinates for the fortress itself, which is odd that he is able to outsmart a being known to have high enough intelligence to be dubbed "Intelligence personified". He also is able to realize what animal he must turn into for any threats, instantaneously. Also able to form ingenious battle plans in the episode 63-Calling all Titan. Also in the episode "The beast within" the first time Beast boy fought against the titans he lost. But the second time he easily beat them, showing he has an ability to immediately adapt to any situation.
As an animal, he doesn't really talk but he makes animal noises. However, strangely in Titan Rising, he yelled out "TERRA!" as a gorilla because he and Starfire were competiting each other to be the first one to hug Terra when she came back.