The sources reviewed do not confirm that Anna Cathcart and Sang Heon Lee are dating in real life, and they do not provide a reliable current dating-status list for the wider XO, Kitty cast. Kitty and Min Ho’s romance is part of the show; the actors’ on-screen chemistry and interviews about playing a couple are not evidence of an off-screen relationship.
Are Anna Cathcart and Sang Heon Lee dating?
There is no confirmation in the sources reviewed that Cathcart and Lee are a real-life couple. Netflix’s Season 3 ending explainer discusses the fictional relationship between Kitty and Min Ho and quotes the actors about the storyline. It identifies Cathcart and Lee as the performers portraying those characters; it does not report that they are dating.
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Two interviews published in April 2026 also focus on the characters and the work of portraying their romance: Swooon’s interview with Cathcart and Lee and an EnVi interview. Neither establishes an off-screen relationship. Joint press appearances and fictional chemistry do not, by themselves, confirm one.
Why viewers ask about the cast’s real-life relationships
The series gives Kitty and Min Ho a romantic storyline, so it is easy to carry that interest over to the actors. But Kitty and Min Ho are characters, while Cathcart and Lee are the actors playing them. Netflix’s Season 3 cast guide likewise describes relationships among characters, including Kitty’s friendship with Dae and Q’s relationship with Jin; those plot details do not establish anything about the performers’ private lives.
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What is known about the wider cast’s dating lives?
The material reviewed does not establish the current relationship status of every cast member. It is therefore more accurate to say that a status is not publicly confirmed in these sources than to call someone single or to publish a speculative cast-wide dating list. A rumor, fan edit, social post without a clear disclosure, or appearance together is not enough to verify a relationship.
For a real-life relationship claim, look for a direct public statement from the person involved or reputable reporting that clearly identifies its source and date. Without that, the responsible answer is to keep the show’s romances separate from the cast’s private lives.
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