Weak Hero

Park Ji-hoon

Yeon Si-eun· 16 ep

Choi Hyun-wook

Ahn Su-ho· 16 ep

Hong Kyung

Oh Beom-seok· 16 ep

Cha Woo-min

Kang Woo-young· 16 ep

Yoo Su-bin

Choi Hyo-man· 9 ep

Ryeoun

Park Hu-min· 8 ep

Lee Yeon

Yeong-i· 8 ep

Choi Min-yeong

Seo Jun-tae· 8 ep

Kim Su-gyeom

Jeon Yeong-bin· 8 ep

Shin Seung-ho

Jeon Seok-dae· 8 ep

Bae Na-ra

Na Baek-jin· 8 ep

Lee Min-jae

Go Hyun-tak· 8 ep

Lee Jun-young

Geum Seong-je· 8 ep

Yoon Jung-hoon

Lee Jeong-chan· 8 ep

Cha Se-jin

Basketball club member 3· 8 ep

Hwang Sung-bin

Han Tae-hoon· 8 ep

Na Chul

Kim Gil-su· 8 ep

이용빈

Seung-min· 8 ep

Lee Myeong-ro

Baek Dong-ha· 6 ep

Oh Gi-gwang

Do Seong-mok· 6 ep

Jeon Bae-soo

Baku's Father· 6 ep

Kong Hyun-joo

Si-eun's Mother· 5 ep

Cho Jung-seok

Choi Chang-hee· 4 ep

Lim Ho-jun

2-4 Homeroom Teacher· 3 ep

Son Bo-seung

Seoknam's Gorilla· 3 ep

Jang Dae-woong

Kim Won-seok· 2 ep

Jung Hyeon-jun

Child Park Hu-min· 2 ep

Lee Hyun-bae

Yeong-bin's Friend· 1 ep

Yu Seong-yong

Baseball Player· 1 ep

Oh Su Yun

Yeong-bin's Mother· 1 ep

Kim Hyeok-jong

Police Officer 1· 1 ep

Kim Tae-jun

Police Officer 3· 1 ep

Pyeon Hae-jun

Kim Hui-jun· 1 ep

Park Sang-eun

Jeong-chan's Friend· 1 ep

Jang Jae-ha

Child Yeon Si-eun· 1 ep

Byun Joong-hee

An Su-ho's Grandmother· 1 ep

Kim Hyun

School Principal· 1 ep

Lee Hae-woon

Homeroom Teacher· 1 ep

Jeon Su-ji

Psychiatrist· 1 ep

Jang Jun-whee

2-7 Homeroom Teacher· 1 ep

Kang Hak-soo

Police Officer· 1 ep

Kim Geon

Baek-jin's Classmate· 1 ep

Bae Hyun-kyung

Detective· 1 ep

Shin Mi-yeong

Orphanage Director· 1 ep

Jo Ah-young

Yeong-bin's Friend· 1 ep