Every quirky girl doesn't have to be the best-friend character. It's a very limiting and self-fulfilling prophecy. People only write things that will get green-lit, so they write to those stereotypes.
Voice acting is very different from live-action. You only have one tool to convey emotion. You can't sell a line with a look. It's all about your vocal instrument.
Typecasting is something I have to be careful with, since I play myself on Geek & Sundry so much on my weekly show 'The Flog.' That's why I did 'Dragon Age: Redemption' last year, so I could do something a little more dramatic and hard-edged.
My favorite 'Mister Rogers' episodes were always the ones where Mr. Rogers would go into the community.