Reisig and Taylor/Disney General Entertainment Content/Getty (2) The finale ofLostaired 15 years ago, on May 23, 2010 While many viewers were left confused or unsatisfied by the ending, star Daniel Dae Kim tells PEOPLE he thinks he understands what happened, and why The actor also says his sons are now old enough to enjoy watching the show, too Fifteen years later, theLostfinaleis still one of TV's most debated endings. While some fans found it emotional and meaningful, others were left frustrated by thelack of clear answers. The mystery-heavy show left much open to interpretation,fueling ongoing discussionsthat continue today, even among the show's stars. "IthinkI have some understanding of it," Daniel Dae Kim, 56, tells PEOPLE. "I was able to talk to the showrunners and I enjoyed it. I know it was controversial, but I enjoyed it because it provided closure for the characters, and that's the thing I wanted most from that finale." Reisig and Taylor/Disney General Entertainment Content via Getty Never miss a story — sign up forPEOPLE's free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from celebrity news to compelling human interest stories. To this day, Kim, whoportrayed Jin-Soo Kwon on the six-season show, reveals that fans still come up to him to express their love for the series. "The fact that people come up to me 20 years after it aired … is very special, very unique," he says. "It doesn't often happen in this business when there's so much content to watch all the time." In 2016 during aWatch What Happens Livewith Andy Cohen, Kim defended the show's ending, emphasizing that the emotional resolutions for the characters were more important than unanswered questions. "I liked it. I genuinely liked it only because, to me, it didn't matter all the questions that got unanswered and the minutiae of kind of details that everyone was obsessing about, it didn't matter as much as what happened to the characters," Kim said. "And I liked to see that they were moving off together because they spent some of their lives together. Now they were gonna spend eternity together." Now that Kim's sons Zander and Jackson are older, he says that they "both are fans" of the show even though they were quite young when it first premiered. "WhenLostfirst came on the air, my youngest was only 3 years old, and so he was way too young to watch anything that's scary," he tells PEOPLE. "I'll never forget that when those opening drumbeats would come on, or when you hear the whoosh of the logo credit, my youngest son would jump up and run out of the room because he was so frightened to watch it." Astrid Stawiarz/Getty Apart from television and the big screen, Kim is also recognized on the Broadway stage. Last fall, he starred in the playYellow Faceby David Henry Hwang, earning him aTony Award nomination— making him the first Asian American to be nominated in the Lead Actor in a Play category. "It feels incredibly special," Kim told PEOPLE at the Tony Awards' annual 'Meet the Nominees' event on May 8. "I found out that stat a couple of weeks ago, and it really surprised me because the Tonys have been around for 78 years! To know that I'm the first makes me a little sad, but a lot happy. It's very meaningful. In fact, it means more for that reason than it does for my own achievement." The 2025 Tony Awards air live from Radio City Music Hall in New York City Sunday, June 8, on CBS. Read the original article onPeople