View gallery Image Credit: Getty Images Nicholas Brendon had lived with several health issues and setbacks in the last few years of his life. The late Buffy the Vampire Slayer actor, 54, who played the character Xander Harris in all seven seasons of the show, died in March 2026. "We are heartbroken to share the passing of our brother and son, Nicholas Brendon. He passed in his sleep of natural causes," Brendon's family wrote in a statement obtained by The Hollywood Reporter. "Most people know Nicky for his work as an actor and for the characters he brought to life over the years.