Boksooga Dolawadda

Kim Jae-hwa

Kang So-jeong

Hee-Jun Oh

Kim Jae-yoon

Seung-Bum Hong

Choi Do-hyeon

Lee Kang-Min

Yoon Seung-woo

Yoo Seung-ho

Kang Bok-soo

Jo Bo-ah

Son Soo-jeong

Kwak Dong-yeon

Oh Se-ho

Kim Mi-Kyung

Lee Jeong-soon (Bok-soo's mother)

Ho-jin Chun

Park Dong-joon

Kim Dong-young

Lee Kyung-hyun (Bok-soo's friend)

Park Ah-In

Yang Min Ji

Dong-Joo Jang

Lee Chae-min

Eom Hyo-Seob

Kim Gwi-chang (Principal)

Kim Kwang-gyu

Song Yoo-taek (Vice principal)

Seon-ho Yoo

Yoo Shi-on

Joon-seok Yeon

Oh Young-min

Joel Roberts

Shim-Ran

Seo Hye-won

Kim Bo-kyung