Quite a lot of favorite characters in Teen Titans (2003), despite their limited appearances.
- Blackfire has a pretty sizable fanbase, most likely due to her voice, her figure and her outfit.
- Kid Flash only showed up twice, but he's very well-liked by the fans. Being a suave, witty gentleman might have something to do with it.
- Red X is especially impressive. He's a character original to the animated series, and he only appears in two episodes, in only one of which is he a headlining antagonist. We never learn anything of his background; not even his real face, but the fandom fell in love with him precisely for those reasons. It also helps that he's a suave Gentleman Thief. His enduring popularity is likely why he was eventually integrated into the main comics during the DC Future State event.
- Jinx is incredibly popular, particularly in Lightspeed, so her Heel–Face Turn was met with open arms.
- Argent only appears in two episodes, yet is very popular in the fandom.
- Mumbo was said to be a one-off character created for the show, but a positive fan reaction influenced further appearance. Being voiced by Tom Kenny probably helped.
- It's safe to say Teen Titans' Killer Moth is greatly preferred over the comic's version, due to being far more badass and cool.
- HIVE students Kyd Wykkyd and Angel are Canon Foreigners who never get any dialogue but both have a lot of fans and fan art due to their powers, costumes, Kyd's mysterious and stoic demeanor, and the brief scene where Wkkyd is seen protecting Angel during the destruction of the HIVE academy. For Kyd, it's to the point where he's only surpassed by Jinx as the most popular H.I.V.E. member.
- Mas y Menos, Sí ¡Podemos! Despite being original characters created only for the show and used mostly as comic relief, they were popular enough to end up in the comics.
- An interesting example is Beast Boy's Man-Beast form, which is incredibly popular, especially in fanfiction circles, despite its debut episode, The Beast Within, being regarded as one of the most poorly written episodes of the show.
