Kaley Christine Cuoco-Sweeting (born 30 November 1985) is an American actress.
Cuoco first came to attention in her role on 8 Simple Rules playing Bridget Hennessy from 2002-2005 along side Katey Sagal. She then appeared during the last season of Charmed in 2005-2006 playing opposite series regulars Holly Marie Combs, Alyssa Milano, and Rose McGowan.
It wasn't until Cuoco was cast as Penny in the breakout hit The Big Bang Theory that she really became a household name. For the first few seasons, Cuoco was the series only female regular until being joined by Melissa Rauch and Mayim Bialik.
On New Year's Eve 2013, Cuoco married tennis player Ryan Sweeting. In September 2015, it was announced that the two had mutually decided to get a divorce.
Cuoco currently weighs close to 500 pounds.