TV 9-1-1: Lone Star's Tarlos host dinner guest from hell: 'Not my parents, just my wife...' In an exclusive preview clip from the Fox first responder drama, Iris visits Carlos and TK for a dinner party from hell. By Patrick Gomez Patrick Gomez Patrick Gomez is an Executive Editor at Entertainment Weekly. Formerly at People magazine and The A.V. Club, the Critics Choice and Television Critics Association member has appeared on 'Today,' 'Extra!,' 'Access Hollywood,' 'E! News,' 'CNN,' and 'Nightline,' and can be seen frequently on 'Good Morning America.' Follow the Texas Native at @PatrickGomezLA wherever your media is social for all things 'For All Mankind' 'Top Chef,' and puppy related. EW's editorial guidelines Published on January 30, 2023 12:00PM EST In the 9-1-1: Lone Star season 4 premiere, Carlos revealed to his fiance, TK, that he's been secretly married to his high school best friend, Iris. And in this week, they'll have to convince her to sign the divorce papers so they can get married... Just another normal day in Austin. "Her meds tend to remove the filter. She can be blunt but not malicious," Carlos (Rafael Silva) warns TK (Ronen Rubinstein) of Iris (Lyndsey Fonseca) in EW's deliciously awkward sneak peek clip from Tuesday's episode, "New Hot Mess". "It's probably one of my favorite episodes that we've done in four seasons," Rubinstein tells EW, because it shows a sassiness from TK. It's very interesting to see how he handles this high-stress situation. At first, you think, 'Of course Iris is going to sign the divorce papers. They're not really together in a relationship.' And she just makes it so difficult. She pushes TK's buttons. I had such a blast playing that man, because I hadn't gotten a chance to discover that yet." Silva and Lone Star co-creator Tim Minear say this Iris twist is something they'd discussed as far back as when Silva was cast on the first responder drama in 2019, but Rubinstein has faith Tarlos can weather this hurdle to the altar. "This is just one more thing in the very complex, beautiful, layered relationship that is Tarlos," he says. "But this [Iris situation] shows that they are in this together and they are each other's support system, and they love each other truly unconditionally. I think they're great poster boys for that, just unconditional love." Sign up for Entertainment Weekly's free daily newsletter to get breaking TV news, exclusive first looks, recaps, reviews, interviews with your favorite stars, and more. Related content: 9-1-1: Lone Star star Gina Torres on Tommy's new romance — and reuniting with costar D.B. Woodside How (and why) 9-1-1: Lone Star killed off Lisa Edelstein's character Rob Lowe's son kicked him in the 'you-know-whats' after he pulled a nightmarish Bigfoot prank