The actor has signed on to guest star in his wife's spooky new Witches of Eastwick TV spin-off, Eastwick - but he won't be romancing her on the show.
Instead, he'll be hooking up with family friend and Romijn's co-star Jaime Ray Newman.
He says, "There's a kissing scene, but there is no jealousy. They're very good friends. There will be no weirdness."