Sullivan’s Crossing took a surprising turn when Cal met Maggie’s secret husband — but who exactly is Liam?
Season 3 of the hit series, which started streaming on Netflix in August 2025, initially hinted at Maggie’s (Morgan Kohan) ex when she mentioned Liam (Marcus Rosner) to Lola (Amalia Williamson) as a summer fling she had met before finishing medical school. After a meet-cute while on a trip abroad, Maggie and Liam fell out of touch.
Liam was brought up again when Cal (Chad Michael Murray) found letters Maggie had written to Liam explaining why their relationship couldn’t work long-term because she wanted to prioritize her career.
The rest of the season focused on Maggie and Cal’s relationship. Despite them not being an official couple, they faced several challenges, including Cal reconnecting with his estranged father who was battling a terminal illness.
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After Maggie supported Cal through the difficult reunion, they returned to Sullivan’s Crossing, where he asked her to move in with him. Maggie wasn’t as excited to take their relationship to the next level, and it wasn’t until a phone call with her stepfather Walter (Peter Outerbridge) that Maggie realized she was scared.
Maggie and Cal made up just as the third season came to an end. They were sharing a sweet moment by the campfire when a guest who checked in earlier that day revealed himself to be Liam. He then shocked Cal by referring to himself as Maggie’s husband.
“I remember hearing a little bit [about Liam early in season 3]. I didn’t know they were married,” Kohan, 31, told Swooon in July 2025. “There started to be talk when we filmed the scene with Lola and having summer flings. I knew that he was going to be coming into it, but I didn’t really know when or in what capacity. That cliffhanger was so much fun for me to read as well.”
Kohan acknowledged that Maggie’s trepidation about getting serious with Cal could have come from her past with Liam, adding, “I feel like it came up so last minute that I didn’t really have time to think about it, but I think it definitely would. It makes a lot more sense, for sure, for her to be more hesitant.”
The actress noted that she was just as in the dark about Liam’s role in season 4 as the audience.
“At the same time, I still don’t know the history, so who knows when we get to find out a bit more of that information, what he really means that he’s her husband and all that kind of stuff,” she continued. “I mean, there’s gonna have to be a few conversations had [between Maggie and Cal]. It’s going to be a trust thing to have to build up again because that is a pretty big thing to leave out.”
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Showrunner Roma Roth also teased what the newcomer’s arrival meant for Maggie and Cal.
“There’s never a dull moment at Sullivan’s Crossing,” Roth told Collider that same month. “A romance drama series needs to have push and pull between your characters … we’re going to have a pretty big shoe drop at the end of the season that we’ll get to see play out in season 4.”
Roth said she wanted season 3 to reflect the theme of “second chances,” sharing, “These characters have been through a lot over two seasons. We wanted to give them an opportunity to explore love. I think that’s what we actually even called one of the scripts.”
Roth concluded: “Because we’re dealing with a lot of emotional issues we wanted to have some lightness and levity this season, by giving people a reprieve and having them have some hope and positivity in their lives. Continuing the journey from the head to the heart — with emotion and drama and a few surprises.”
Sullivan’s Crossing has been renewed for season 4 and past seasons are currently streaming on Netflix.
