When Willow and Buffy first meet, Willow's a shy, awkward girl who's good with computers and has a huge crush on Xander. As Willow learns to help Buffy fight evil, whether it's by accessing public (or not-so-public) computer databases, or experimenting with spells and witchcraft, she becomes more self-confident, more powerful, and more dangerous than her high-school self would ever have believed possible.
Typical quote: "When I'm with a boy I like, it's hard for me to say anything cool, or, or witty. Or at all. I...I can usually make a few vowel sounds, and then I have to go away."