S1·E3 – Episode 3

Jung Il-woo

Eun Seon-woo

Kwon Yu-ri

Don Se-ra

Um Mun-suk

Yang Jin-mo

Song Sang-eun

Sa Na-hee

Lee Jun-hyeok

Director Hong

Shin Go-eun

Yoo Young-bok

[High school principal] (Ep.10)

Jo Young-jin

Kang Wan-soo

Yoon Sun-woo

Kang Tae-joon

Hong Woo-jin

Kim Jae-ha

Lee Na-ra

Park Eun-jeong (Nurse) (Eps 3, 4)