Claire Bennet is a fictional female character in the
NBC science fiction
drama series
Heroes. She is portrayed by
Hayden Panettiere and first appeared on television in the pilot episode of the series, "
Genesis" on September 25, 2006. She is a high school
cheerleader-turned-agent with the power of
rapid cellular regeneration. Claire appears in more episodes than any other character (72, plus a 73rd through stock footage).