Choi Min-sik as Admiral Yi Sun-Shin

Ryu Seung-ryong as Kurushima Michifusa

Cho Jin-woong as Wakizaka Yasuharu

Jin Goo as Im Jun-yeong

Lee Jung-hyun as Mrs. Jeong

Kim Myung-gon as Todo Takatora

Kwon Yul as Yi Hoe

No Min-woo as Haru

Kim Tae-hun as Kim Joong-geol

Ryohei Otani as Junsa

Kim Kang-il as Kato

Park Bo-gum as Bae Su-bong

Lee Hae-yeong as Song Hui-rip

Jang Jun-nyeong as Na Dae-yong

Moon Young-dong as Kim Dol-son

Kim Won-hae as Bae Seol

Go Kyung-pyo as Oh Duk-yi (uncredited)

Choi Deok-moon as Song Yeo-jong

Park No-shik as Kim Eok-choo

Shin Yoo-ram as Hye-hee

Ha Soo-ho as Executive Officer Kim Eung-ham

Kim Hyeon-tae as Ok-hyung

Kang Tae-young as Kimura

Kim Koo-taek as Bae Hong-seok

Lee Sung-woo as Joseon naval force

Jo Bok-rae as Oh Sang-gu (uncredited)

Lee Jae-gu as Jo Mun-ong (uncredited)

Jo Ha-seok as Jo Tae-shik (uncredited)

Lee Joo-sil as Elder Jong-seon (uncredited)

Kyul Hwi as Bae-seol's man (uncredited)

Ju Seok-tae as Katsura (uncredited)

Kim Min-sik as Navy

Lee Seung-joon as Large Body Military

Lee Seung-joon as Ahn Wi

Jung Je-woo as Kuroda

Kim Moon-jong as Kim Eok-choo's chief (uncredited)