The 45-year-old actress is sharing the screen with her husband, Jerry O'Connell, in the season finale of his show, Carter -- and ET's got an exclusive sneak peek.
O'Connell plays TV star Harley Carter in the WGN America series, but his past as an on-screen detective isn't enough to solve his latest real-life mystery. That's where Romijn comes in. The actress plays producer Cassidy, who comes into town for Harley, but ends up being a huge asset in Carter's case.
"You know I'm a TV writer," Romijn's character says in the clip, confused by the case file laid out in front of her.
"You're better than a profiler! You write the words the profilers say!" O'Connell's Carter insists. "And you won a Peabody!"
Flattery isn't enough to get Romijn on board, however. Watch the full clip in the video player above. The season finale of Carter airs Tuesday at 10 p.m. ET/PT on WGN America.
While Romijn and O'Connell are naturals on camera together, the blonde beauty recently revealed to ET that they draw the line at working together as actors.
"No, we would never," she said with a laugh, when asked if they'd ever do a reality show. "Jerry and I would never put our private life out there like that."
We might have hope for more of the pair on O'Connell's upcoming talk show, however. See more on the couple in the video below.