Teen Titans is an American animated television series created by Glen Murakami, based on the DC Comics characters of the same name. It is based primarily on the run of stories by Marv Wolfman and George Pérez in the early 1980s New Teen Titans comic book series.
Teen Titans premiered on Cartoon Network on July 19, 2003, and also premiered on Kids' WB!. Initially, only four seasons were planned, but the popularity of the series led to Cartoon Network ordering a fifth season. The final half-hour episode of the show, "Things Change", aired on January 16, 2006; it was later followed by a TV movie, Teen Titans: Trouble in Tokyo, that premiered on September 15, 2006, serving as the series finale.
Teen Titans became one of Cartoon Network's most beloved and critically acclaimed series, renowned for its character development and serious themes. During its run, the series was nominated for three Annie Awards and one Motion Picture Sound Editors Award. Spin-off media included comics, DVD releases, video games, music albums, and collectible toys. In 2013, the show spawned a reboot, titled Teen Titans Go!.
The series was first shown on Boomerang from February 2, 2009 until October 31, 2010. It returned to Boomerang's line-up on October 3, 2011, and left the schedule again on June 1, 2014.
Teen Titans centers around the five main members of the superhero team: Robin (Scott Menville), the intelligent, capable leader of the Teen Titans; Starfire (Hynden Walch), a quirky, curious alien princess from the planet Tamaran; Cyborg (Khary Payton), a half-human/half-robot who is known for his strength and technological prowess; Raven (Tara Strong), a stoic girl from the parallel world Azarath, who draws upon dark energy and psionic abilities; and Beast Boy (Greg Cipes), a ditzy, good-natured joker who can transform into various animals. They are situated in Titans Tower, a large T-shaped structure featuring living quarters as well as a command center and variety of training facilities, on an island just offshore from the fictional West Coast city of Jump City.
The team deals with all manner of criminal activity and threats to the city, while dealing with their own struggles with adolescence, their mutual friendships, and their limitations. Slade, their main enemy, is a newly designed version of the DC villain Deathstroke. The team encounters several allies throughout the series; including Aqualad in the first season; Terra in the second season (who is integral to that season's story arc), as well as Speedy, Hotspot, and Wildebeest; Bumblebee and Más y Menos in the third season (who join Aqualad, Speedy and bumblebee to form 'Titans East'), and numerous other heroes adapted from the DC universe in the fifth season to aid in the battle against the Brotherhood of Evil.
Unlike most other superhero television series, the Teen Titans characters maintain their superhero identities at all times, with any hints at the concept of an alter ego or secret identity rarely explored. Traditionally, in the comics, the characters Raven, Cyborg, Starfire, Beast Boy, and Terra do not have secret identities (Starfire being a translation of her Tamaranean birth name, Cyborg's real name being public knowledge, Beast Boy's natural appearance being a dead giveaway, and Raven and Terra simply not taking another identity).
In particular, some fans debated which Robin leads the Teen Titans, with several hints throughout the series suggesting it is Dick Grayson. These include Robin's alternate dimensional counterpart Larry in the episode "Fractured" being named Nosyarg Kcid ("Dick Grayson" spelled backwards), Dick Grayson's counterpart in the episode "How Long Is Forever?" having taken on the identity of Nightwing (Grayson's identity in the DC continuity), and a glimpse into Robin's consciousness by Raven in the episode "Haunted" showing the memory of two acrobats falling from a trapeze (the death of Grayson's acrobat parents being the catalyst for him becoming Robin). Further connections to the Batman mythos include two references in the episode "The Apprentice, Pt. II", when Robin responds to a suggestion by the villain Slade that he "might be like a father to [him]" with "I already have a father" (which transitions to a shot of flying bats) and a fight scene on the rooftop of a building labeled Wayne Enterprises.
It was really important to me that little kids watching it could identify with characters. And I thought that the minute you start giving them secret identities then kids couldn't project themselves onto the characters anymore. And that was important to me. I know it's kind of important to have secret identities and stuff like that but we wanted everything to be really, really, iconic. Like, "Oh, there's the robot guy. There's the alien girl. There's the witch girl. There's the shape-changing boy." There's the we [sic] just wanted it really clean like that. We wanted it like old Star Trek. We just wanted it simple...-Glen Murakami, Drawing Inspiration: An Interview with Glen Murakami, April 2004 
...And the whole "Who's Robin?" controversy is really kind of interesting to me. My big concern is just trying to make Robin cool. And just really set Robin apart from Batman. So if it seems like I'm avoiding the question, I sort of am. Because I don't think it's really important. My concern is how do I make Robin a really strong lead character without all that other stuff. And I feel that way about all the characters. How can I keep all the characters really iconic and really clean?
The policy of not mentioning the characters' secret identities is broken in the fifth season, where the Doom Patrol members refer to Beast Boy by his real name, Garfield (though the Titans still continue to call him Beast Boy). In "Go", the Titans ask Beast Boy about his mask and he states it hides his true identity, though Raven points out that with green skin, pointed ears, and fangs, he "has no secret to hide".