Kaley Cuoco is an American film and television actress. She is best known for her roles as Bridget Hennessy on the sitcom 8 Simple Rules, Billie Jenkins on the supernatural drama Charmed and Penny on the sitcom The Big Bang Theory. Cuoco has landed three movie roles for 2010/2011. She will star as Piper in the movie Drive Angry, I Hop and as Wanda in The Last Ride. Cuoco has also just been cast alongside Cam Gigandet, Penn Badgley and Crystal Lowe in Darkness Falls.
Cuoco starred in the Lifetime film To Be Fat Like Me, which premiered on January 8, 2007. She played a minor role in the Prison Break episodes "The Message" and "Chicago", as well as starring in the comedy horror spoof Killer Movie in 2008. Additionally, she appeared in the 2010 film The Penthouse and in 2011 she appeared in the films Hop and The Last Ride.
Kaley has starred in the Big Bang Theory since its start in 2007.