Park Joong-hoon as Yi Sun-shin

Kim Seung-woo as Kang Min-gil

Hwang Jung-min as Park Jung-woo

Gong Hyo-jin as Kim Su-yeon

Kim Seung-cheol as Choi Gwang

Kim Byung-choon as Lee Hee-chul

Kim Su-hyun as Won-hoon

Don Lee as Hwang Sang-wook

Kim Koo-taek as Ni Tang-kae

Kim Ji-hyeon as (uncredited)

Kim Hye-eun as Announcer