- Choi Min-sik
- Admiral Yi Sun-Shin
- Ryu Seung-ryong
- General Kurushima Michifusa
- Cho Jin-woong
- General Wakizaka Yasuharu
- Kim Myung-gon
- Navy Commander Todo Takadora
- Jin Goo
- Im Jun-yeong
- Lee Jung-hyun
- Lim Jung (war widow)
- Ryôhei Ohtani
- Junsa
- No Min-woo
- Haru
- Kim Tae-hoon
- Kim Joong-geol
- Park Bo-gum
- Soo-bong
- Lee Seung-joon
- Captain Ahn Wi
- Choi Deok-moon
- Song Yeo-jong
- Zach Aguilar
- Yi Hoe
- Tommy Arciniega
- Junsa
- Corina Boettger
- Additional Voices
- Goo Bon-jin
- Oh Kye-juk
- Ray Carsillo
- Additional Voices
- Chris Cason
- Captain Ahn Wei / Hwang Bo-man (voice)
- Stephanie Cheng
- Additional Voices
- Susie Chong
- Additional Voices
- Greg Chun
- Song Hui-rip
- John DeMita
- Captain Kim Uk-Chu / Elder Kim (voice) (as a different name)
- Marc Diraison
- General Wakizaka Yasuharu
- Richard Epcar
- General Kurushima Michifusa
- Chris Hackney
- Lim Jun-yeong
- Lee Ho-Cheol
- Japanese soldier
- Eom Ji-man
- Jang-soo (Joseon Army)
- Kim Joon-Hyung
- Ahn-wi's army
- Kai Jordan
- Additional Voices
- Kai Jordan
- Additional Voices
- Steve Kramer
- Navy Commander Todo Takadora
- Alan Lee
- Bae Su-bong / Katsura (voice)
- Dave Mallow
- Captain Kato Yoshiaki / Kim Dol-son (voice)
- Michael McConnohie
- Admiral Yi Sun-Shin
- Kim Min-sik
- Joseon naval forces
- Megan Niessink
- Lim Jung (war widow) / Additional Voices (voice)
- Tony Oliver
- Captain Bae Seol / Kuroda (voice)
- Sheldon Roberts
- Additional Voices
- Michael Rogel
- Additional Voices
- Lee Seung-joon
- Large body military
- Michael Sorich
- Commander-in-chief Kwon Yul
- Joo Suk-tae
- Katsura
- Seo Sung-gwang
- Lee Eok-gi
- Kaiji Tang
- Nah Dae-yong
- Kirk Thornton
- Kim Joong-geol
- Han Yi-jin
- Bae-seol's Chief
- Kwon Yul
- Yi Hoe
