Hayden Lesley Panettiere (born August 21, 1989) is an American actress and singer who began performing as an infant. She first appeared in commercials as a baby and won her first television role at age four on the soap opera One Life to Live. Over the following decades she moved from child parts to high-profile adult roles and has combined screen work with musical performances tied to her television projects.

Panettiere’s mainstream breakthrough came in television. She gained wide recognition for portraying Claire Bennet, a cheerleader with regenerative abilities, on the NBC science-fiction series Heroes. Later she starred as Juliette Barnes, a rising and conflicted country-pop star, on the drama series Nashville. For Nashville she recorded and performed several songs that were released on the show’s soundtracks and received award nominations for her work as part of the series ensemble.

In addition to television, Panettiere has appeared in feature films and lent her voice to animated projects. Her screen work spans family dramas, teen comedies and independent films, often combining dramatic moments with lighter, musical elements when roles call for it. Her career pathway illustrates a transition from child actor to a performer who balances acting and singing in professional projects.

Outside entertainment, Panettiere is known for conservation and humanitarian involvement. She has been active in campaigns opposing commercial whaling and has participated in public advocacy: in January 2008 she spoke at an anti-whaling meeting in Washington, D.C., and subsequently engaged with representatives from countries involved in whaling policy discussions. Her activism has been part of a broader public profile that includes support for marine conservation and animal welfare causes.

Selected notes and distinctions

  • Early start: commercials as an infant and a recurring childhood role on One Life to Live.
  • Television prominence: Claire Bennet on Heroes and Juliette Barnes on Nashville.
  • Music and performance: recorded songs for Nashville and appeared on associated soundtracks.
  • Advocacy: public anti-whaling work and participation in conservation events (anti-whaling).
  • Family: her younger brother, Jansen Panettiere, is also an actor.

Panettiere’s public image blends entertainment and activism. She has frequently discussed the demands of a public career and at times shared personal struggles and learning experiences with mental health and work–life balance, helping to broaden conversations about the pressures faced by performers who grew up in the industry. Her career continues to be noted for the combination of acting range and musical performance, and for using her platform to advance conservation issues.