Jung Jin-young (정진영) is a South Korean actor. He has starred in numerous films, including Hi! Dharma!, Bunt, and The Case of Itaewon Homicide. But Jung is best known for his frequent collaborations with director Lee Joon-ik, namely Once Upon a Time in a Battlefield and its sequel Battlefield Heroes, The Happy Life, Sunny, and particularly for his role as King Yeonsan in the hugely successful King and the Clown.

Song Kang-ho (송강호) is a South Korean actor. Considered one of the best actors of the 21st century, he is most known for his collaborations with directors Park Chan-wook and Bong Joon-ho. He was awarded Best Actor at the 75th Cannes Film Festival for his performance in Broker (2022), and has been named Gallup Korea's Film Actor of the Year four times.