Actress Hayden Panettiere has died at the age of 36, according to confirmation from her representative to ABC News. Best known for her role as Claire Bennet in the NBC series "Heroes", Panettiere also starred in films like "Remember the Titans" and "Scream VI." Details surrounding her death have not yet been released. The news of her passing has prompted an outpouring of grief from fans and colleagues across social media. Panettiere had been open about her struggles with substance abuse and postpartum depression in recent years. Her representative has requested privacy for her family during this difficult time. This marks a significant loss for the entertainment industry.