https://www.hollywoodreporter.com/tv/tv-news/nicholas-brendon-dead-buffy-the-vampire-slayer-1236543090/

> Brendon portrayed the charismatic Xander Harris throughout all seven seasons
> of the original Buffy the Vampire SlayerTVseries. He co-starred in the popular
> supernatural teen drama with Sarah Michelle Gellar (Buffy), Alyson Hannigan
> (Willow), Charisma Carpenter (Cordelia), and David Boreanaz (Angel). He was
> only 54 years old at the time of his death.

> According to a statement from his family shared with The Hollywood Reporter,
> Brendon died in his sleep from natural causes. The message said that the actor
> had a lot of health challenges, but he was receiving treatment and remained
> optimistic about the future. His family has requested privacy as they mourn
> and honor his life. They also expressed gratitude to those who have offered
> support during this difficult time.