The couple opens up to PEOPLE about Emerson's guest-starring role on the hit CBS series — and working alongside each other on set

Married couple Carrie Preston and Michael Emerson on teaming up for a third time on-screen as he joins her CBS show "Elsbeth" in a recurring role.

Warning: The following contains spoilers for Thursday’s Elsbeth. Proceed at your own risk! This week’s Elsbeth didn’t waste any time establishing that Michael Emerson’s character is up to no good: Within the first act of Thursday’s episode,