From Costars to Couple to Co-Parents!

Keri Russell and Matthew Rhys aren’t the first celebs to start their journey to parenthood with an on-set romance

KERI RUSSELL & MATTHEW RHYS

After months of relationship rumors, the The Americans costars confirmed in April 2014 that they were indeed dating. Now, Russell and Rhys have even more good news: They're expecting their first child together, a source confirmed in January 2016. A friend of the couple, who play married Russian spies Elizabeth and Philip Jennings on the critically acclaimed FX show, told PEOPLE "they're thrilled" about the new addition (who will join Russell's son River, 7½, and 3-year-old daughter Willa Lou).