Reparto (por orden de créditos)
Lee Min-Ho
Park Doo-hyeon
Park Bo-young
Cha Ah-Rang
Lee Sung-min
Seo Jin Woo
Eun-ji Jo
Choi Ye-seul
Cheol-ho Choi
Bachelor teacher
Yong-Joon Ahn
Lee Gi-Yeong
Bae Yumi
Park Eun Ho
Sun-yeong Ahn
Park Mi-Sook [Homeroom teacher]
Hae-in Kang
Choi Ye Seul
Hyun-ho Shin
Jang Dong Cheol
Ki-beom Jang
Self