Four months after divorcing David Duchovny, Tea Leoni is dating her Madam Secretary costar Tim Daly, who plays her husband on the show Credit: Heather Wines/CBS via Getty Images

Tea Leoni's leading man on-screen is now her leading man offscreen, too! As revealed exclusively in the new issue of Us Weekly, the recently divorced Madam Secretary actress is dating her costar Tim Daly, who plays the husband of her character Elizabeth Faulkner McCord on the CBS political drama. 

"Their chemistry on set is electrifying," a source tells Us of Leoni, 48, and Daly, 58. "They have an amazing time filming."

The fun continues off-camera, too. On Friday, Nov. 14, the duo were seen strolling down a street in L.A.'s Venice area "with their arms wrapped around each other," a witness says, adding, "They were definitely couple-y."

For his part, Private Practice alum Daly gushed about working with Leoni back in September, telling Collider they went to the same high school in Vermont, years apart. "She's a person, like me and like a lot of people who have gone to that school...who can be perfectly happy sleeping in a wet sleeping bag on a stone floor, or staying in a fancy hotel," he said of his costar.

"She's not a whiner. She wants to work hard and she wants to have fun," he added. "We get along really, really well. We have a really good time. I've gotten along with plenty of people, but the chemistry sucked. And I've hated people where the chemistry is great. It's much better if you get along and the chemistry is good. That's perfect."

News of the blossoming romance comes four months after Leoni's divorce from ex-husband David Duchovny, with whom she has two kids. The former spouses were married for 14 years before announcing their separation in June 2011; they finalized their split this past August.

Daly, meanwhile, was married to Amy Van Nostrand from 1982 to 2010. They have two adult children.