Kwon Se-in, better known by the stage name Kwon Yul, is a South Korean actor. He made his acting debut with a leading role in the 2007 high school sitcom Mackerel Run. Kwon is best known for his roles as Seo Ji-seok on the daily soap opera Angel's Revenge (2014), Yi Hoe in the blockbuster period film The Admiral: Roaring Currents (2014), and as Lee Sang-woo in the hit romantic comedy series Let's Eat 2 (2015).

The Admiral: Roaring Currents (Korean: 명량), or simply The Admiral, is a 2014 South Korean epic historical action-war film directed and co-written by Kim Han-min. Based on the historical Battle of Myeongnyang, it stars an ensemble cast led by Choi Min-sik as the Korean naval commander Yi Sun-sin. The film was released theatrically in South Korea on July 30, 2014.