Instagram/Nicholas Brendon & Alyson TV Heartbroken family confirms Nicholas Brendon, beloved Xander Harris on Buffy the Vampire Slayer, has died at 54. Remembering a life lived with intensity and ... March 21, 2026 AceShowbiz - Buffy the Vampire Slayer star Nicholas Brendon has passed away at the age of 54, his family has confirmed. The actor, renowned for his role as Xander Harris on the iconic 1990s television series, died peacefully in his sleep on Friday, March 20.