Hayden Panettiere Opened Up About Her Brother Jansen Years After His Sudden Loss — and the Guilt She Carried

Hayden Panettiere spent the final years of her life carrying the weight of a loss she never quite learned to put down. Now, following her own sudden death at 36, the actress' deeply personal account of losing her younger brother has taken on an even more heartbreaking meaning.

Hayden Panettiere and her younger brother, Jansen Panettiere, grew up in Hollywood and both found their way into acting as children, according to their IMDb profiles.

According to ABC News, his final television role came in 2019, when he appeared as Casper, a member of the Hilltop Colony, on The Walking Dead. Away from acting, his artwork became an important way for him to express himself.

The Siblings Who Grew Up in the Spotlight

A few weeks before his death, Jansen even shared a playful glimpse of his relationship with his older sister. In January 2023, he posted a photo of Hayden cutting his hair, joking in the caption, "Not the first haircut she's tried to give me."

The post would become an unexpectedly poignant glimpse of the siblings together shortly before tragedy struck.

Jansen's Sudden Death Shocked His Family

Jansen died in February 2023 at just 28 years old, leaving his family struggling to understand a loss that came without warning. In a statement to ABC News, the Panettiere family described Jansen as a warm, creative person whose personality lived on through his art and the memories he left behind.

"Jansen's heart could be seen in his eyes, and his charm in his brilliant, engaging smile; his soul in his masterful and revealing paintings, and the joy of life in his dry wit," the family said. They added, "His charisma, warmth, compassion for others, and his creative spirit will live forever in our hearts and in the hearts of all whom he encountered."

The family also revealed what the medical examiner had determined about his death. "Though it offers little solace, the Medical Examiner reported Jansen's sudden passing was due to cardiomegaly (enlarged heart), coupled with aortic valve complications," they said.

At the time, the revelation gave the family an official explanation for Jansen's sudden passing, even if it could not explain away the shock of losing him so young.

Hayden Kept Returning to the Brother She Lost

For Hayden, however, Jansen's death was not something she simply left in the past. Two years after his death, she marked the anniversary with an emotional Instagram tribute, writing, "2 years ago today, I lost my little brother. This amazing human being touched the lives of so many. Especially mine."

She continued:

"The pain isn't quantifiable. I pray you're in a beautiful place, J. That you're at peace and that when all is said and done…I'll see you again. Rest easy, brother. You are so missed and beyond loved. 💜"

By September 2025, her grief was still unmistakably present. Hayden marked what would have been Jansen's 31st birthday by describing him as "a remarkable human being" who was "wise beyond his years" and operated at "a higher spiritual level than anyone I've ever met."

She wrote that she missed him every day but believed his spirit remained close to her family. "I love you to infinity and beyond, J, and we will be together again one day," she wrote.

Then Hayden Revealed Why the Loss Still Haunted Her

The most painful part of Hayden's story emerged in 2026, as she prepared to release her memoir, This Is Me: A Reckoning. In an interview with E! News, Hayden admitted that writing about Jansen was the hardest part of the book. Her grief, she explained, was complicated by something much heavier than simply missing her younger brother.

Hayden said:

"It's all the time. It just evolves, especially with a sibling and being the older sibling. You're just riddled with guilt that you didn't do your job."

In her memoir and related interviews, she revealed that Jansen had struggled with serious substance abuse, including crack and heroin. Hayden said learning how severe his addiction had become left her shocked and made her question whether she could have done more.

She had tried to help him, including getting him into treatment and maintaining contact with his therapist. But Jansen did not experience treatment in the same way Hayden had. The Remember the Titans actress explained that she had found peace in treatment, while Jansen felt "caged" by it.

The difference left her wrestling with an agonizing question: whether she had actually known how to help him.

Hayden's Guilt Went Back Years

"I, of all people, should have understood," she told E!, before acknowledging the painful reality that there are limits to what one person can do for another. "You can't help somebody who doesn't want to help themselves. It's just a sad fact."

In a Jay Shetty Podcast interview promoting her memoir, Hayden went even deeper into that feeling of failure. Speaking about Jansen, she described him as the person who understood her better than almost anyone else because they had grown up experiencing the same unusual world together.

She recalled feeling that she had failed to keep him safe and said she had tried to warn the people around her that his addiction was serious. She also remembered trying to intervene before he was even an adult, "I mean, I remember before he was eighteen, begging my parents to send him to military school, before he was capable of making decisions for himself, that he needed to; they needed to do this for his safety, and he needed to be disciplined."

Even amid that guilt, Hayden spoke lovingly about what Jansen left behind.

She Found a Way to Keep Him Close

His paintings became particularly precious to her because they gave her something tangible that still felt connected to him.

"He was an incredible artist," she told E!. "My favorite thing that I have is his paintings. I feel like he's so alive in those paintings, like that part of him is immortalized because of the part of himself that he put into his art."

Jansen's death came after years in which Hayden had already been confronting her own struggles with addiction, anxiety, postpartum depression and mental health.

Hayden Was Also Trying to Rebuild Her Own Life

In her May 2026 conversation with Jay Shetty, she pushed back against the idea that she had simply been forced into treatment.

"The misconception is that I have been in the past forced into treatment when, in fact, I have been the one who sought it out, saying, 'I desperately need help. I don't, you know, I know this is going to look terrible, but I cannot live like this anymore.'"

Hayden also addressed persistent claims about her relationship with her daughter, Kaya Klitschko, explaining that the decision for Kaya to live in Europe was made while Hayden was struggling with her mental health and had not yet recovered.

Hayden Explained Why Her Daughter Lived in Europe

"I was struggling with mental health and anxiety and the postpartum and having to act my way through it and just feeling like I completely lost myself," she said.

When Kaya was about 2½ years old, Hayden said her father, Wladimir Klitschko, decided it would be best for her to live in Europe. Hayden admitted she initially had a very difficult reaction to the decision.

"When that first happened, I did not have a good reaction to it. I went like [a] mother lion. I would have burnt the world down for my child," she said.

But as Hayden recovered, she said she began looking at the situation differently. Kaya had already spent years traveling between the United States and Europe, where she had family, friends, extracurricular activities and a life she was comfortable with.

"So by the time I finally got healthy, I felt like it would have been unfair of me and selfish of me to try to pull her away from this life that she had been created," Hayden explained.

She said Kaya was "living an incredible life" and described her as a happy child who knew she had two parents who loved her. "I know in my heart that she feels supported. I have an incredible relationship with her. I go, I travel as much as I can. I see her. I do spend a lot of time on FaceTime with her," Hayden said.

She also emphasized the depth of their relationship, saying, "We talk about really deep things. We have a really intense, incredible bond and I'm very grateful for that."

Hayden added, "I know that she knows that she has two parents who would do anything in the world to make sure that she is happy and healthy mentally, emotionally, physically, spiritually."

She was particularly firm about the suggestion that Kaya felt abandoned. "She in no way feels abandoned — and that's something that I've made sure to stay on top of and be very aware of."

Hayden also pushed back against the broader narrative surrounding her decision as a mother. "The idea that anybody would think that I would just give away my child and be okay with it is heartbreaking."

She said the idea that she had simply given up her daughter “could not be farther from the truth” and hoped sharing her side of the story would make the circumstances clearer.

After she had publicly revisited some of the most painful chapters of her life, Hayden died suddenly on August 16, 2026.

Her Death Came Before She Could Close This Chapter

According to ABC News, her father, Skip Panettiere, confirmed her death in a statement. She was 36. "It is with profound sadness that we share the tragic passing of our beloved Hayden. She was an incredible light and a force of nature who brought immeasurable love and joy to all who knew her -- and to the millions who watched her onscreen."

According to NBC News, her publicist, Kasey Kitchen, said the actress's death was being investigated. "There's an investigation ongoing,” Kasey said in a statement. "We should know more tomorrow." Police in Greenville, South Carolina, said officers, "accompanied by EMS personnel, responded to a report of an unresponsive female at around 1:50 p.m. Sunday.

"Upon arrival, medical assistance was administered; however, the individual, later identified as Hayden Panettiere, was pronounced deceased at the scene," police said. Police added, "The case is under investigation by the Greenville Police Department in conjunction with the Greenville County Coroner’s Office."

The statement added that "The preliminary investigation has not indicated any signs of foul play or suspicious circumstances." According to police, "An acquaintance of Ms. Panettiere placed the 911 call." The statement added that no further details were available for release at that time.

TMZ reported that law enforcement confirmed an open investigation and that Hayden had reportedly complained of back pain during the past year. The outlet also reported that she traveled south from Los Angeles with her on-again, off-again boyfriend, Brian Hickerson, on Saturday.

That detail has inevitably drawn attention because of the turbulent history between Hayden and Brian. In 2021, Brian was sentenced to 45 days in county jail, four years of formal probation and other penalties after pleading no contest to two felony counts of injuring a spouse or girlfriend, according to ET.

Following Brian's arrest, Hayden publicly addressed what she said she had experienced during their relationship, making clear that she wanted to use her story to help others facing abuse.

"I am coming forward with the truth about what happened to me with the hope that my story will empower others in abusive relationships to get the help they need and deserve. I am prepared to do my part to make sure this man never hurts anyone again. I’m grateful for my support system, which helped me find the courage to regain my voice and my life," she added at the time.

At that time, her attorney, Alan Jackson, also shared a statement to ET, which read, "After suffering for years as the victim of psychological, emotional and severe physical abuse, Hayden Panettiere has begun the process of taking back her life."

"Hayden has found the strength and courage to share the truth about her abuse and her abuser, and she intends to assist the prosecution to see that justice is served," the statement continued. "As a survivor, she recognizes that her arduous journey of healing has just begun."