In 2006, Panettiere began dating Stephen Colletti, the former Laguna Beach: The Real Orange County, star. The couple broke up in September 2007. In December 2007, it was widely reported that she was dating her Heroes costar Milo Ventimiglia, though Panettiere denied these reports in an interview with GQ. These reports continued through the early part of 2008, and several sources had reported that Read more...

On October 31, 2007, Panettiere participated in the activity of Sea Shepherd to try to disrupt the annual dolphin hunt in Taiji, Wakayama, Japan. She was involved in a confrontation between Japanese fishermen and five other surfers from Australia and the United States (including former Home and Away star Isabel Lucas) of the group. The confrontation lasted more than ten minutes before the surfers Read more...

Hayden Leslie Panettiere (born August 21, 1989) is an American actress and singer. Hayden plays the character Claire Bennet on the NBC television program Heroes. The advertising campaign and slogan for the program known as "Save the Cheerleader, Save the World" has helped make Panettiere famous.[citation needed]