The actor, known for playing Xander Harris in the hit series, died in his sleep of natural causes, according to his family.

Brendon died of "natural causes", his family said in a statement, remembering him as "passionate" and "sensitive".

Brendon’s co-star Alyson Hannigan has led tributes to him.

In 2023, Brendon revealed that he had suffered a heart attack and had been diagnosed with a congenital heart defect. The actor’s cause of death has not been determined.

Nicholas Brendon, an actor best known for his role as a loveable underdog sidekick on the hit television series “Buffy the Vampire Slayer,” has died. He was 54. Brendon’s family announced the death in a statement posted on his social media accounts Friday. They said he died in his sleep of natural causes, but did […]

Nicholas Brendon, an actor best known for his role as a loveable underdog sidekick on the hit television series “Buffy the Vampire Slayer,” has died.

Nicholas Brendon, the actor who played Xander Harris on all seven seasons of Buffy the Vampire Slayer has passed away. He was only 54.

Nicholas Brendon, star of ‘Buffy the Vampire Slayer’ and ‘Criminal Minds,’ has died. He played Xander Harris for seven years on ‘Buffy.’

Nicholas Brendon, known for playing Xander Harris on the television series “Buffy the Vampire Slayer,” has died at 54, his family announced Friday.

Writer-director Joston Ramon Theney said Nicholas Brendon was "incredibly proud" of the work he did on romance drama "Yesterday Is Almost Here."