Kaley Cuoco

Kaley Christine Cuoco-Sweeting (born November 30, 1985) is an American actress who is best known for her roles as Bridget Hennessy on the ABC sitcom 8 Simple Rules from 2002 to 2005, Billie Jenkins on the final season of The WB television series Charmed, and currently plays Penny on the CBS sitcomThe Big Bang Theory since 2007.

She voiced Brandy Harrington on the Disney Channel animated series, Brandy & Mr. Whiskers.