Who Has Kaley Cuoco Dated? Look Back on Her List of Lovers

The actor, who is best known for his longtime role on The Young and the Restless, dated Kaley in 2002.

Kaley and Kevin struck up a romance in 2003 while costarring in The Hollow. They dated for a year, and Kevin went on to star on Gossip Girl. In 2015, he welcomed twin girls with his wife, Jaime Feld.

Kaley dated Jaron, a singer who performs with his twin brother as part of the musical duo Evan and Jaron, between 2005 and 2006.

In 2007, Kaley briefly dated actor Al Santos.

Beginning in 2008, Kaley and Johnny dated secretly for almost two years while filming The Big Bang Theory. They didn't reveal their romance until calling it quits in 2010 and have both since moved on to new relationships, even as they continue to star opposite each other (as husband and wife!) on the CBS show. Kaley married tennis player Ryan Sweeting in January 2014; at the time of her engagement, Johnny told reporters that he was "very, very happy for her," adding, "She's very happy, which makes me terribly happy." Though Kaley and Ryan called it quits in September 2015, she and Johnny are still close IRL and put their friendship on display at the People's Choice Awards in January 2016.

After splitting from Johnny Galecki, Kaley began seeing musician Christopher French. The couple dated from 2011 to 2012 and even recorded a duet of "Somewhere Over the Rainbow" to benefit the Human Society. Christopher is now married to Ashley Tisdale, who he began dating in December 2012.

After her split from Josh Resnik in 2012, Kaley began dating Bret Bollinger. They ended their romance in January 2013.

After Kaley's short-lived romance with the man of steel, she began dating tennis player Ryan Sweeting. They got engaged in September 2013 after three months together, and tied the knot in a lavish ceremony three months after that, on New Year's Eve. In September 2015, nearly two years after getting married, the couple called it quits.

Kaley was reported to be "quietly dating" Arrow actor Paul Blackthorne in December 2015, though the two were never spotted out together. A source told Us Weekly that "It's new, but she's really excited about it."