Hayden Panettiere, born on August 21, 1989, in Palisades, New York, is an American actress and singer known for her versatile talent and captivating performances. She began her career at a very young age, appearing in commercials when she was just eleven months old. 

Her full-time acting career took off in 1994 when she played Sarah Roberts in the ABC soap opera "One Life to Live" until 1997. She later portrayed Lizzie Spaulding in the CBS soap opera "Guiding Light" from 1996 to 2000.

Her breakthrough role came in 2006 when she starred as Claire Bennet in the NBC superhero series "Heroes," which earned her widespread recognition and acclaim. She continued to impress audiences with her role as Juliette Barnes in the ABC/CMT musical drama series "Nashville" from 2012 to 2018, earning two Golden Globe nominations for Best Supporting Actress. 

She also played Kirby Reed in the slasher horror franchise "Scream" from 2011 to 2023.

In addition to her television success, she has appeared in numerous films. Some of her notable movie roles include "Remember the Titans" (2000), "Raising Helen" (2004), "Ice Princess" (2005), "Bring It On: All or Nothing" (2006), "I Love You, Beth Cooper" (2009), and "Custody" (2016). 

She has also lent her voice to characters in animated films and video games, such as Kairi and Xion in the "Kingdom Hearts" series and Samantha "Sam" Giddings in the video game "Until Dawn."

Her personal life has been marked by both triumphs and challenges. She has been open about her struggles with postpartum depression and her efforts to seek treatment. She has a daughter, Kaya Evdokia Klitschko, with her former partner, Ukrainian boxer Wladimir Klitschko. 

The couple had an on-and-off relationship from 2009 to 2018. Hayden Panettiere has also been involved in activism, particularly in campaigns to protect marine life and oceans.

Throughout her career, she has received numerous awards and nominations. She won the Saturn Award for Best Supporting Actress on Television for her role in "Heroes" and the Young Artist Award for Best Performance in a TV Series (Comedy or Drama) for the same role. 

She has also been nominated for two Golden Globe Awards for her performance in "Nashville" and received a Grammy nomination for her work on the Pixar film "A Bug's Life."