A consultant for the actress confirmed the information to US community ABC on Sunday (August 16).
Her father, Skip Panettiere, has described her as “an unimaginable gentle and a power of nature.”
Actress Hayden Panettiere dies aged 36
In a tribute, Mr Panettiere mentioned: “It’s with profound unhappiness that we share the tragic passing of our beloved Hayden.
“She was an unimaginable gentle and a power of nature who introduced immeasurable love and pleasure to all who knew her — and to the hundreds of thousands who watched her onscreen.”
No reason for demise has been launched, and her household has requested privateness as they “take time to course of this unimaginable loss.”
Panettiere started her appearing profession as a toddler, showing in cleaning soap operas earlier than gaining wider recognition within the 2000 movie Bear in mind The Titans alongside Denzel Washington.
She additionally voiced Dot in Pixar’s 1998 movie A Bug’s Life.
She rose to worldwide fame as Claire Bennet within the superhero drama Heroes and later starred as Juliette Barnes within the nation music sequence Nashville.
Her performances in Nashville earned her two Golden Globe nominations for finest supporting actress, and her music from the present produced 11 entries on the US Billboard Sizzling Nation Songs charts.
Panettiere’s different movie credit embrace Deliver It On: All Or Nothing and Elevating Helen.
She additionally notably performed Kirby Reed in two movies within the Scream horror franchise, Scream 4, and Scream VI.
She was open about her private struggles, revealing she battled dependancy all through her 20s.
In a memoir printed earlier this 12 months, she mentioned her psychological well being challenges, the lack of her youthful brother Jansen, and her determination to offer full custody of her daughter, Kyra, to her former associate, Ukrainian boxer Wladimir Klitschko, in 2018.
In a podcast interview with Jay Shetty, she addressed public perceptions of her determination.
Ms Panettiere mentioned: “The concept anybody would suppose that I’d simply give away my little one and be okay with it’s heartbreaking and couldn’t be farther from the reality.”
She defined that Kyra had lived along with her father full-time from a younger age resulting from her struggles with dependancy and psychological well being.
She mentioned: “I used to be fighting psychological well being and nervousness and the postpartum and having to behave my approach by means of it and simply feeling like I utterly misplaced myself.”
Actors’ union Sag-Aftra paid tribute to her on social media.
In a publish on X, the union mentioned: “We mourn the sudden passing of Hayden Panettiere.
“A baby actor, Hayden’s lengthy profession in TV & movie included memorable roles in Heroes, Nashville & extra.
“Our hearts are along with her daughter, household, buddies & followers.”