Leem Seung-min
Leem Seung-min (임승민) played young Jung Hae-sung in Celine Song's acclaimed romantic drama Past Lives (2023). He portrayed the 12-year-old version of the male protagonist during the film's opening Seoul segment alongside Moon Seung-ah (young Nora), establishing the foundational childhood bond before the adult timeline starring Teo Yoo and Greta Lee.
