Hayden Panettiere, the actress who became a household name for her role as cheerleader Claire Bennet on NBC's "Heroes," died at 36. Her representative confirmed her death to Deadline without disclosing immediate cause.

Panettiere built a career spanning television, film, and voice acting across multiple decades. Beyond "Heroes," which aired from 2006 to 2010, she became known for her role as Juliette Barnes on the country music drama "Nashville," which ran for six seasons on ABC. She also appeared in several "Scream" franchise films and lent her voice to animated projects.

Born in 1989, Panettiere began working as a child actress and maintained steady work throughout her teens and twenties. Her performance in "Heroes" established her as a fan favorite, and the show's success elevated her profile considerably in the mid-2000s. The series, which explored the lives of ordinary people discovering superhuman abilities, showcased Panettiere's range in portraying a character grappling with discovering her own regenerative powers.

Her later work on "Nashville" demonstrated her commitment to sustained dramatic roles. The series, which explored the lives of country music performers and songwriters, allowed Panettiere to display depth in portraying Juliette's complicated personal and professional journey.

The television and film communities responded to her passing with an outpouring of tributes. Colleagues and contemporaries who worked with Panettiere throughout her career reflected on her professionalism and presence on set.

Panettiere's death marks a significant loss for the entertainment industry. Her contributions to television drama, particularly in "Heroes" and "Nashville," left a lasting imprint on audiences and demonstrated her talent for bringing complexity to character work across different genres and networks.