Kaley Cuoco is an American actress best known for her role as Bridget Hennessy on the television sitcom 8 Simple Rules, from 2002-2005.
She is also known for her role as Billie Jenkins on the eighth and final season of the fantasy series Charmed, from 2005-2006.
She can be currently seen on The Big Bang Theory, since 2007.
Cuoco was born in Camarillo, California to Gary Carmine Cuoco and Layne Ann Wingate. She was home schooled on the set and earned her High School Diploma at the age of 16.
Her acting career began in 1992 with the TV movie Quicksand: No Escape. Her role as Maureen McCormick in the 2000 TV movie Growing Up Brady 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 had starring roles on the mini-series 10.5, on the ABC Family original movie Crimes of Fashion, and in the independent film Debating Robert Lee.
Cuoco was named #75 on FHM-US's 100 Sexiest Women in 2004.
She began voicing the character of Brandy Harrington on the Disney Channel's cartoon, Brandy and Mr. Whiskers, later in 2004. She also lent her voice for Elena Potato, a main character on the Kids' WB, Disney Channel Asia show, Monster Allergy.
Although she played the oldest child of the 8 Simple Rules family, she is in fact six years younger than her co-star, Amy Davidson, who played the middle child. She parodied herself on one episode of 8 Simple Rules in a cold opening sequence.
Cuoco appeared as Billie Jenkins, a new witch who was searching for her lost sister, in the 8th season of the hit TV show Charmed alongside Holly Marie Combs, Alyssa Milano and Rose Mcgowan, and remained until the series was ended.
In 2004, Cuoco co-starred in the movie The Hollow with stars Nick Carter and Kevin Zegers.
Kaley also starred in the Lifetime movie To Be Fat Like Me which aired in 2007. She played a minor role in two episodes of Prison Break, also in 2007.
She was a nationally ranked amateur tennis player until she switched to acting full time in 2002.
On October 29, 2007, Kaley announced on The View that she was dating a shoe designer. She neglected to divulge any further details about him. She said she doesn't have very many friends in the acting business, and isn't into dating actors anymore.