Nicholas Brendon plays Alexander "Xander" Lavelle Harris on Buffy the Vampire Slayer. He is always providing the show with a wisecrack of some sort. His character, Xander, is somewhat a looser. Having a vampire slayer as a friend can be good at some times, and yet bad at others. Xander is a guy, who is always there for Buffy, (hey, a slayer has more problems than you think) whether it's breathing life back into her, or just being there for support when her boyfriend started killing all her friends.
After Angel reverted back to his evil side, Xander let it be know how much he hated him. He wasn't even afraid to tell Buffy that she was willing to forget what happened to Ms. Calendar just so she could have her boyfriend back. In Becoming, Xander confessed his love to a comatose Willow only to have her think it was Oz. After all the time of "not liking her in that way," he finally found that he took too long to realize his feelings for her.