"When the scholar Jeong Yak-jeon is exiled to Heuksando Island during the Catholic Persecution of 1801, he decides to write a fish-based encyclopaedia."
Sul Kyung-gu
as Jeong Yak-jeon
Byun Yo-han
as Chang-dae
Lee Jung-eun
as Mrs. Gageo
Min Do-hee
as Bok-rye
Cha Soon-bae
as Poong-heon
Kang Ki-young
as Lee Gang-hoe
Ryu Seung-ryong
as Jeong Yak-yong
Jo Woo-jin
as Byeol Jang
Kim Eui-sung
as Mr. Jang
Jung Jin-young
as King Jeong-jo
Dong Bang-woo
as Naju Mayor
Pang Eun-jin
as Chang-dae's Mother
Yoon Kyung-ho
as Moon Soon-deok
Choi Won-young
as Jeong Yak-jong
Cho Seung-yeon
as Lee Byeok
Joo Bo-bi
as Ms. Naju
Ham Geon-su
as Monk
Kim Yun-tae
as Majae Gold Guru
Kim Jun-han
as Hwang Sa-young
Lee Sun-ju
as Queen
Lee Young-suk
as Shim Hwan-ji
Kim Jung-pal
as Lee Seung-hoon
Bong Man-dae
as Small Gong Man
Min Tae-yul
as Naju Petty Official
Jin Jae-hee
as Wrestling Child
Yoo In-hye
as Gisaeng
Bae Je-gi
as Resident 1
Jo Ha-seok
as Seo Yong-bo
Jeong Ji-in
as Courtesan
Choi Hyeon-jin
as King Soon-jo
Hong Jang-pyo
Special Effects Supervisor
Kim Joung-hoon
Adaptation
Chung Min-joo
Sound Supervisor
Kim Pil-soo
Shin Young-hoon
Martial Arts Choreographer
Kim Jung-hun
VFX Supervisor
No Ju-han
Still Photographer
Hyun Seo-won
Assistant Music Supervisor
Park Jun-yong
Props
Kim Nam-ho
Set Decoration
Lim Hyung-geun
Production Sound Mixer
Yoon Hwang-jik
Special Effects Makeup Artist
Lee Joon-ik
Director
Lee Eui-tae
Director of Photography
Shim Hyun-seob
Costume Design
Kim Jin-sun
Executive Producer
Kim Jung-hoon
Editor
Bang Jun-seok
Original Music Composer
Lee Jae-sung
Production Design
Sean Kim
Producer
Yoo Huck-jun
Lighting Director
Cho Tae-hee
Makeup & Hair
Kim Se-gyeom
Writer
Lee Jae-woo
Co-Executive Producer