Nicholas Brendon, the actor beloved for his role as Xander Harris on Buffy the Vampire Slayer, died on March 20, at age 54, according to a family statement. "We are heartbroken to share the passing of our brother and son, Nicholas Brendon," the statement shared with Us Weekly read. "Most people know Nicky for his work as an actor and for the characters he brought to life over the years." The statement confirmed that Brendon died in his sleep of "natural causes." They added, "In recent years, Nicky has found his passion in painting and art.