Wow, all those describe me really well! I don't watch Teen Titans a lot though, so I don't know about Beast Boy... but if he's as silly as you say he is, that's one thing we have in common!... and, no comment on Elmer Fudd... *laughs like him* Hehehehe....
Well, let's see... I have a few I can name!
Kayleigh - Colette, from Tales of Symphonia. Sorry if this sounds repetitive, but I can't emphasize this enough, hehe. They're both kind-hearted, and always put the well-being of others first, even if it means putting themselves at risk. They're both total klutzes too, a trait that can't be ignored, hehe.
Sayuri no Hoshi - Sheena, from Tales of Symphonia. No doubt about it! Sheena accepts the responsibilities she has, and even if she isn't sucessful, she isn't afraid to face the consequences of her actions. She has a caring and a "Get out of my way" side too, just like good ol' Chrystie, hehe.
Kairi - Raine, from Tales of Symphonia. They're both so knowledgable in different things. Plus, Kairi often says she can kick our butts in different games, and there are several scenes in the game where Raine, literally, kicks butt... or, slaps at least, ah heh. *sweatdrops*
Scyther5 - Regal, from Tales of Symphonia (This is the last one, hehe. Though there are probably people here on PC that remind me of every single person in the game). They both hold true to their beliefs, and have a strong will. If you get to know each of them, you would find a very kind and protective person inside, even if they are a bit rough around the edges at first.
Castrainer - Sylvester the cat, from Looney Tunes (Ha! Right back at ya, hehe). I don't know, probably because of the way he speaks online, hehe. They both sure can dedicate themselves to things! Like Castrainer to PC, and Sylvester to catching Tweetie, hehe (Gah! I forgot how to spell all their names!).
Sakura and Espeon - May, from Pokemon. I just get that kind of vibe around her, hehe. They're both sweet, and always seem to have that "half-full" kind of attitude, instead of "half-empty". They both also seem rather gentle in a way.
That's all that I can think of at 1 something in the morning, hehe. I'll write some more later!