Hayden Panettiere, the actor known for TV series such as Nashville and Heroes, and the former voice performer for Kairi in the Kingdom Hearts series, has passed away. She was 36.Panettiere’s extensive credits include roles in films such as Remember the Titans, I Love You, Beth Cooper, Scream 4, and, most recently, Sleepwalker. She portrayed Juliette Barnes in the CMT series Nashville and Claire Bennet in Heroes and Heroes Reborn.Video game fans will recognize Panettiere as the original English voice…