Nicholas Brendon dies at 54: ‘Buffy the Vampire Slayer’ star had congenital heart defect, faced serious health issues; all you need to know

Nicholas Brendon Dies: Nicholas Brendon, the actor best known for his role as Xander on “Buffy the Vampire Slayer," has passed away at the age of 54. His family announced news of Brendon’s death in a statement shared on his official Instagram page on Friday (March 20, 2026). In the statement, the family revealed that he died “in his sleep of natural causes.” However, it is pertinent to note that the exact cause of death was not known at the time of filing of this report.

“We are heartbroken to share the passing of our brother and son, Nicholas Brendon. He passed away in his sleep of natural causes. Most people know Nicky for his work as an actor and for the characters he brought to life over the years. In recent years, Nicky has found his passion in painting and art. Nicky loved to share his enthusiastic talent with his family, friends, and fans. He was passionate, sensitive, and endlessly driven to create,” the family revealed.

“Those who truly knew him understood that his art was one of the purest reflections of who he was. While it’s no secret that Nicholas had struggles in the past, he was on medications and treatment to manage his diagnosis, and he was optimistic about the future at the time of his passing,” the statement further read.

View this post on Instagram

A post shared by Nicholas Brendon (@nicholasbrendon)

“Our family asks for privacy during this time as we grieve his loss and celebrate the life of a man who lived with intensity, imagination, and heart. Thank you to everyone who has shown love and support,” it concluded.

In 2023, Brendon had revealed that he had suffered a heart attack and had been diagnosed with a congenital heart defect, as reported by The Hollywood Reporter. Congenital heart disease (CHD) is a problem with how the heart forms before birth, according to Cleveland Clinic. Some issues are more severe than others. They prevent normal blood flow through the heart and beyond. He also suffered cauda equina syndrome, which led to several spinal surgeries.

Besides health issues, Brendon also had a long history of legal troubles. According to TMZ, the actor was charged with domestic violence in 2017 after drunkenly attacking his girlfriend. His rep had no comment at the time.

Brendon was a series regular on 'Buffy' opposite Sarah Michelle Gellar. He essayed the role of Xander Harris during the series' seven seasons and enjoyed immense popularity. The planned reboot of “Buffy” was recently cancelled at Hulu, and it remains uncertain whether Nicholas would have been involved in the project.

Born on April 12, 1971, in Los Angeles, California, Brendon’s first major role in a feature film came with the Charles Busch satire Psycho Beach Party (2000). According to IMDb, he also starred in the ABC Family Channel original movie Celeste in the City (2004).