Lee Joon-gi is a South Korean actor, singer, also a writer, dancer, and model. He rose to fame on his first leading role playing a clown in the critically acclaimed film The King and the Clown (2005) and gained further recognition in the romantic comedy My Girl (2005−06). Since then, he has diversified into other genres such as historical dramas (sageuk) and action thrillers. He is also known for his roles in Iljimae (2008), Arang and the Magistrate (2012), Moon Lovers: Scarlet Heart Ryeo (2016), Lawless Lawyer (2018), and Flower of Evil (2020).

The King and the Clown is a 2005 South Korean historical drama film starring Kam Woo-sung, Jung Jin-young, and Lee Joon-gi. It was adapted from the 2000 stage play, Yi ("You") about Yeonsangun of Joseon, a Joseon dynasty king and a court clown who mocks him. It was released on 29 December 2005, runs for 119 minutes; and distributed domestically by Cinema Service and internationally by CJ Entertainment.