Lee Sung Jin

Lee Sung Jin was born in South Korea in 1981. His family moved frequently in his youth; he moved to the United States when he was nine months old and returned to South Korea for third through fifth grade. In sixth grade he moved from Seoul to Minnesota, United States. He also lived in Illinois, Louisiana, Iowa, and Texas. He recalls it as “a horrible time to have a name no one can pronounce" and chose to go by "Sonny" instead. Lee attended the University of Pennsylvania, where he sang in an a cappella group. He graduated in 2003 with a degree in economics. ==Career==

After graduating from college, Lee moved to Los Angeles and worked a variety of part-time jobs while writing scripts. "I thought there was something interesting there—how we're all locked in our subjective world views, and we go around projecting a lot on the other person and not really seeing things for what they are", he said of the incident. He also served as director, executive producer, and showrunner on the series, forced to remotely direct scenes for the season finale "with my face on an iPad" because of a COVID-19 infection. In August 2023, he visited South Korea to speak at a conference on the creation of films. He said he had not been to South Korea for around 25 years, since his childhood. In a later interview with The Hollywood Reporter, he said he was "working off an existing script from Eric Pearson and I did my pass on it" before stepping away from the project and handing it off to Joanna Calo, who worked with him on Beef. The film credits the screenplay to Pearson and Calo, with the story by Pearson. According to the Writers Guild of America West, Lee received credit for "Additional Literary Material". In April 2026, it was confirmed by Jake Schreier that Lee Sung Jin was co-writing the screenplay for the upcoming X-Men film being produced by Marvel Studios alongside Joanna Calo after the pair previously worked on Thunderbolts*, revising the original script by Michael Lesslie. The same month, he renewed his overall deal with Netflix. ==Personal life==

Lee lives in Los Angeles with his wife, Caty Solone, and three dogs. He plays the violin, guitar, and piano. ==Selected filmography==

Film Television Music videos ==Awards and nominations==