Hayden Panettiere Found Unresponsive, Death Under Investigation

Panettiere's team and her dad Skip Panettiere announced her untimely passing on Aug. 16, days before her 37th birthday.

"It is with profound sadness that we share the tragic passing of our beloved Hayden," Skip shared in a statement obtained by ABC News. "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."

Prior to her death, Panettiere—who is survived by daughter Kaya, with ex-fiancé Wladimir Klitschko—released her memoir This Is Me: A Reckoning, in which she shared candid details about her battle with postpartum depression, addiction, as well as the 2023 death of her brother, Jansen Panettiere.

"It's all the time," the Remember the Titans actress told E! News in May. "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."

"I miss him all the time," she added. "I didn't think I would have to do life without him, but I'm grateful that I had the time I had with him."

Hayden Panettiere Gets Candid About Daughter Kaya, Wladimir Klitschko, Brother Jansen

Through it all, Panettiere said, she tried to stay in tune with herself.

"I do have a great therapist, but I'm always checking in with myself," she explained, "being self-aware, being surrounded by healthy people who bring out the best in me, just trying to keep in touch with myself and what's going on."

"I had no idea that you could say no for a very, very long time," she added. "I'm an empath, so if I make somebody feel uncomfortable or disappointed or upset, I feel it myself. I don't want to let anybody down. But now I'm putting up more personal boundaries."