Kim Ga-in
Yoon Jin-seo
Hyung-joong
Lee Ki-woo
Hwang Dae-yong
Kim Jin-geun
Kim Mi-joo
Kim Do-yeon
Hyung-joong's Father
Jeong Wook
Kim Ga-geon
Kim So-eun
Chung Eun-gyeong
Oh Yeon-seo
Ji-sun's Father
Jeon Kuk-hwan
Kim Ji-sun
Jo Yeon-hee
Hyung-joong's Mother
Back Joo-hee
Ga-in's Mother
Lee Kan-hee
Ga In's youngest aunt
Seo Yu-jeong
Hong Seok-min
Park Ki-woong
Sang-kyung
Ham Yu-seon
Adult Relative
Kim Soo-woong
Dae-yong's Mother
Park Seoung-tae
Visitor
Lee Sae-byeol
Young Park Hyun-joong
Kang Lee-seok
Ending Student
Park Sin-woo
Ji Seon-mo
Kim Min-kyung
Choi Sang-gyeong
Yeon Je-wook
Lee Myeong-hee
Jeong Yu-mi
Kim Ga-yun
Ga-in's Teacher
Ahn Nae-sang
Detective Jo
Jeong In-gi
Hong Jae-sun
Ahn Shin-woo
Editor
Kim Sun-min
Director
Oh Ki-hwan
Screenplay
Writer
Lee Hyo-Chul
Lee Shin-ae
Musician
Kim Jun-seok
Jung Se-rin
Sound
Lee Seung-yeop
Comic Book
Kang Kyung-ok
Producer
Makeup & Hair
Jang Jin
Adaptation
Shin Dong-sun
Jung Jang-hwan
Assistant Director
Fight Choreographer
Yang Gil-yeong