Kaley Christine Cuoco ( KWOH-koh; born November 30, 1985) is an American actress. After a series of supporting film and television roles in the late 1990s, she landed her breakthrough role as Bridget Hennessy on the ABC sitcom 8 Simple Rules (2002–2005). Thereafter, Cuoco voiced Brandy Harrington on Brandy & Mr. Whiskers (2004–2006) and appeared as Billie Jenkins on the final season of the television series Charmed (2005–2006). Wikipedia