Buffy the Vampire Slayer Nicholas Brendon has passed away at the age of 54.
The actor was best known for playing Xander Harris in the popular television series alongside Sarah Michelle Gellar. He also famously starred as Kevin Lynch in Criminal Minds.
‘We are heartbroken to share the passing of our brother and son, Nicholas Brendon. He passed in his sleep of natural causes,’ his family said in a statement shared on his Instagram account on Friday.
Four of Brendon’s family members were seen posing with him in a group photo that they shared alongside their statement.
His family praised him for his passion for art and his ‘enthusiastic talent’ as they shared photos of him acting as well as some of his paintings.
‘Most people know Nicky for his work as an actor and for the characters he brought to life over the years,’ the statement read.
Buffy the Vampire Slayer star Nicholas Brendon has passed away at the age of 54, his family confirmed on Friday; He is pictured in June 2017
The actor was best known for playing Xander Harris on the popular TV series; Pictured in 1997 portrait, from left to right: David Boreanaz, Sarah Michelle Gellar, Nicholas Brendon
‘Those who truly knew him understood that his art was one of the purest reflections of who he was.’
‘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,’ his family members concluded in their joint statement.
‘Thank you to everyone who has shown love and support.’
The statement shared by the late actor’s family was edited, but an earlier version published just hours earlier suggested that Brendon was going through treatment for an unspecified diagnosis at the time of his death.
Per The Hollywood Reporter, his family previously wrote: ‘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.’
In 2022, the actor previously revealed that he had suffered a heart attack and was subsequently diagnosed with a congenital heart defect.
‘We are heartbroken to share the passing of our brother and son, Nicholas Brendon. He passed in his sleep of natural causes,’ his loved ones said in an statement on Friday, sharing a family photo
His family praised him for his passion for art and his ‘enthusiastic talent’ as they shared photos of him acting as well as some of his paintings
He played the lovable sidekick to Sarah Michelle Gellar’s character Buffy Summers; Pictured in October 1998
Brendon appeared in all seven seasons of the hit TV series, which aired from 1997 to 2003; Pictured in 1998 still, from left to right: Gellar, Charisma Carpenter, Brendon, Alyson Hannigan and Seth Green
He previously opened up about his addiction struggles, explaining that also played a role in his ongoing health battles, including cauda equina syndrome.
Following a serious fall he had in February 2021, according to the Los Angeles Times, he suffered from cauda equina syndrome — the compression of a collection of nerve roots located at the bottom of the spinal cord, per the Cleveland Clinic — and was required to undergo multiple corrective spinal surgeries over the years.
Late last year, Brendon also underwent ‘knee surgery,’ according to his Facebook post in November 2025.
In Buffy, Brendon played the lovable sidekick to Gellar’s titular character, and together, they appeared in all seven seasons of the hit supernatural drama series, which aired from 1997 to 2003.
He also played recurring roles on Criminal Minds as well as in Kitchen Confidential, a sitcom starring Bradley Cooper and based on Anthony Bourdain’s same-name memoir aired on Fox for only one season.
In addition to his major television roles, he starred in the 2000 film adaptation of Charles Busch’s Psycho Beach Party alongside Lauren Ambrose and Amy Adams.
He also starred in the 2002 thriller Demon Island, the 2007 horror film Unholy and the 2013 sci-fi flick Coherence.
His Buffy co-star Alyson Hannigan later took to Instagram to share a heartfelt tribute to the actor
The actress, who played Willow Rosenberg in Buffy, took to Instagram and shared a photo of them hugging and crying during an emotional scene
Emma Caulfield, who played Brendon’s love interest in the series, also posted a tribute on her Instagram Story
‘My heart is heavy. I can’t put into words just yet how this has hit me,’ she wrote about her costar alongside a clip of a scene of them dancing during the famous musical episode from season six
Pictured from left to right: Brendon, Hannigan, Gellar, and Cordelia Chase
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Following his time on Buffy, Brendon’s struggles with substance abuse and mental health became public, resulting in a string of arrests including prescription fraud.
Starting in 2010, he was charged with offenses ranging between felony vandalism, resisting or obstructing officers, criminal mischief and felony corporal injury to a spouse, with the latter ending in a plea deal and three-year probation.
His recovery journey was intertwined with the arrests as he checked into rehab and opened up about his struggles with mental health and addiction over the years.
Shortly after the tragic news was announced, his costar Alyson Hannigan was among the first to pay tribute to Brendon on social media.
The actress, who played Willow Rosenberg in Buffy, took to Instagram as she remembered some of their fond memories.
‘My Sweet Nicky, thank you for years of laughter, love and Dodgers,’ she wrote alongside a photo of them hugging and crying during an emotional scene.
He was also beloved for playing the recurring character of Kevin Lynch in Criminal Minds
‘I will think of you every time I see a rocking chair. I love you. RIP,’ she wrote alongside emojis of a broken heart and a crying expression.
Emma Caulfield, who played Brendon’s love interest in the series, also posted a tribute on her Instagram Story.
‘My heart is heavy. I can’t put into words just yet how this has hit me,’ she wrote about her costar alongside a clip of a scene of them dancing during the famous musical episode from season six.
‘Let this clip of us giving it our all be a place holder,’ she wrote. ‘Rest Nicky. Rest. I love you.’