Kaley Christine Cuoco (born November 30, 1985 in Camarillo, California) is an American actress best known for her role as Bridget Hennessy on the ABC sitcom 8 Simple Rules.

Born to Gary Carmine Cuoco (an Italian American) and Layne Ann Wingate, Kaley's acting career began in 1992 with the TV movie, Quicksand: No Escape. Her role as Maureen McCormick/Marcia Brady on Growing Up Brady in 1999 brought her much attention, as well as a role on the CBS sitcom, Ladies Man. In 2004, in addition to her role on 8 Simple Rules she has had a starring role on the NBC miniseries, 10.5, on the ABC Family original movie, Crimes Of Fashion, and in the independent film Debating Robert Lee.

In 2004, Kaley Cuoco was named #74 on FHM-US's 100 Sexiest Women 2004. She began voicing the character of "Brandy" on the Disney Channel's cartoon, Brandy and Mr. Whiskers, later on that same year.

Kaley Cuoco is currently starring as Billie, a new witch in the 8th season of Charmed.