Choi Chan-sookChe-yook's Mother Kim Ja-youngMoon-hee's Mother Park Chul-minChief of School Administration Choi Yeo-jinEnglish Teacher Kim Han-naAthletic Club Senior Kim Ha-yeonYoung Yong-soon Kim Young-jaeBirth Mother's Old Love Jang Hye-jinMiddle-aged Woman Kim Keum-soonSupermarket Worker Na Ae-jinAthletic Club Member Han Sa-myeongNew Gym Teacher Woo Yeon-seoEthics Teacher Shin JoonRegissør / Manusforfatter / Co-produsent Cha Won-chunEksekutiv produsent Han Ji-sunProduction Design Kwon Young-ilDirector Of Photography Jang Joo-heeCostume Design Kim Jung-sookProduction Sound Mixer Kim Pil-sooSound Supervisor Chung Min-jooSound Supervisor 
