Vincent Kartheiser and Alexis Bledel

This couple met in 2012 on the set of Mad Men, on which Kartheiser was a series regular and Bledel landed a guest spot. They didn't date right away, instead choosing to remain friends until the end of filming. They eventually became a couple later that year in October 2012 and six months later were engaged. The couple remains very private, but we do know they married in August 2014 and have since become parents to a baby boy.