I think that your favorite fictional characters say a lot about you. I'm curious to see what you say, and how they might or might not relate to you. I'll give some example and share why I think they've become almost like icons to me, shorthand for various aspects of my innermost self.
(Btw, these characters can be from anything, TV, Movies, Books, or what not)
From the fantasy series, Dragonlance. Raistlin is a complicated character, I'll tell you that. He's very intelligent, but caustic and frequently uncaring, except for those he feels are genuinely disadvantaged. It's then that some of his undeveloped compassion comes out. He's physically weak but makes up for it through cunning and strategy. He's highly ambitious, and sometimes doesn't know his limits. His pride rules him, and he makes colossal mistakes because he might miss a small detail due to that hubris.
There's a lot of me in there--hate to say many of the darker and not-so-nice sides to my personality, but I think what I identify with the most is the sense of being an outsider, and using my smarts to impress or ingratiate myself to others.
From the Star Trek : The Next Generation TV series. Data is truly a sophmore--the wise fool. Brilliant and precise on the factual information, a clueless neophyte on emotions, shared human experience, and deception. But he's always open-minded, looking for and seeking out new experiences for their own sake, and improving on his basic programming.
I feel like this all the time--I want to be more than my body, my gender, my current understanding or awareness, so I'm always trying to improve myself. I also feel a little like the clueless dope who's moving through society and missing out on the punchline of the jokes, or failing to understand another person's perspective, because I'm so into my head most of the time. He tends to analyze everything and break it down into parts to better understand it--that's me, too.
So, those are two examples. How about you?