Riven

Shin Hye-sun

as So Si-min

Lee Jun-young

as Han Su-gang

Park Jung-woo

as Ko Jin-hyoung

Park Hyuk-kwon

as So Young-taek

Cha Chung-hwa

as Lee Jae-gyeong

Lee Chan-hyeong

as Lee Gwon-joong

Son Sook

as Jin-hyoung's Grandmother

Bae Hyeon-jun

as Byeong-jin

Cha Woo-min

as Lee Moon-gi

Kim Sang-woo

as Park Jung-ho

Lee Tae-hee

as Kim Jeong-gyu

Lee Tae-gyun

as Byun Jae-hyeok

Kang Anna

as Song Eun-gyo

Kang Na-ru

as Min-ji

Lee Gyu-hoe

as Head Teacher

Lee Jung-ok

as Seo Sang-woo

Dong Hyo-hee

as English Teacher

Nam Jeong-woo

as Math Teacher

Kim Gyeong-ryong

as Principal

Lee Do-eun

as Hye-gyeong

Choi Ri-ho

as Chauffeur

Lee Joo-mi

as Costume manager

Park Jin-pyo

Director

Hyeon Choong-yeol

Writer

Yeoh Gee-na

Writer

Kim Woo-hyun

Editor

Dalpalan

Original Music Composer

Kim Yong-seong

Director of Photography

Park Hui-jeong

Makeup & Hair

Jeon Gun-ik

Special Effects Supervisor

Kim Hyeok

VFX Supervisor

Ko Hee-jung

Costume Design

Kim Chang-sub

Sound Supervisor

Lee Mi-kyoung

Production Design

Jenna Ku

Co-Executive Producer

Kwon Michelle

Executive Producer

Shin Soon-ok

Production Design

Park Jin-pyo

Adaptation

Lee Jun-sang

Producer

Kim Ha-na

Editor

Bae Il-hyuck

Lighting Director

Im Ho-sang

Props

Heo Myeong-haeng

Martial Arts Choreographer

Yoon Seong-min

Martial Arts Choreographer

Kim Jung-hyun

Comic Book

Lee Byeong-hee

Stunts

Jo Woo-jin

Sound Recordist

Gwak Byeong-min

Assistant Director

Cheon Jun-ho

Stunts

Hwang Jin-hye

VFX Supervisor

Lee Won-haeng

Stunts