Costume Designer
Director
Original Creator
Screenwriter
Main Role
- Ji Chang Wook Main Role
- Choi Sung Eun Main Role
- Hwang In Youp Main Role
Support Role
- Oh So HyunSeo Ha Yoon [Ah Yi and Il Deung's classmate]Support Role
- Ji Hye WonBaek Ha Na [Ah Yi and Il Deung's classmate]Support Role
- Hong Jung MinYoon Yoo Yi [Ah Yi's younger sister]Support Role
- Kim Bo YunKim So Hee [Ah Yi and Il Deung's classmate]Support Role
- Im Ki Hong[Homeroom teacher]Support Role
- Park Ha NaMin Ji SooSupport Role
- Hwang Se HeeLee Na YeongSupport Role
Guest Role
- Yoon Sa Bong[Ah Yi's landlord] (Ep. 1)Guest Role
- Joo Ye RimYoon Ah Yi [Young] (Ep. 1, 3-4, 6)Guest Role
- Jo Han Chul[Ah Yi's father] (Ep. 1, 4)Guest Role
- Yoon Gyung HoKim Doo Sik [Convenience store owner] (Ep. 1, 5-6)Guest Role
- Lee Sang Hwa[Loanshark] (Ep. 2)Guest Role
- Yoo Sang Hoon[Loanshark enforcer] (Ep. 2)Guest Role
- Park No Kyeong[Loanshark enforcer] (Ep. 2)Guest Role
- Ryu Kyung Soo[Convenience store part-timer] (Ep. 2)Guest Role
- Yoo Jae MyungNa Ji Man [Il Deung's father] (Ep. 2-3, 5)Guest Role
- Kim Hye EunMrs. Na [Il Deung's mother] (Ep. 2, 4-5)Guest Role
- Go Ae Ri[Ah Yi's mother] (Ep. 3)Guest Role
- Choi Young JoonDetective Kim (Ep. 3, 5-6)Guest Role
- Kim Ba DaSergeant Park [Detective] (Ep. 3, 6)Guest Role
- Kang Moon Kyung[Principal] (Ep. 4)Guest Role
- Choi Seung HoonNa Il Deung [Young] (Ep. 5)Guest Role
- Kim Jin[Jogger] (Ep. 5)Guest Role
- Lee Seung Joon[Teacher] (Ep. 5)Guest Role
- Park Da On[Spectator] (Ep. 5)Guest Role
- Yoo Chae Yeon[Spectator] (Ep. 5)Guest Role
- Jung Ah Young[Spectator] (Ep. 5)Guest Role
- Kim Kyu Na[Spectator] (Ep. 5)Guest Role
- Park Seung Tae[Mugging victim] (Ep. 5)Guest Role
- Hong Seo HeeMin Ji Soo [Young] (Ep. 6)Guest Role
- Nam Da ReumRi Eul / Ryu Min Hyuk [Teen] (Ep. 6)Guest Role
- Kim Yeon Woo[Student] (Ep. 6)Guest Role
- Lee Suk Hyeong[Student] (Ep. 6)Guest Role
- Lee Dong Kyu[Reporter] (Ep. 6)Guest Role
- Jo Si Yeon[Birthday girl] (Ep. 6)Guest Role
- Jun Joon Woo[Police officer] (Ep. 6)Guest Role
- Lee Ki Seop[Forensics investigator] (Ep. 6)Guest Role
- Woo Mi Hwa[Ha Yoon's mother] (Ep. 6)Guest Role
- Lee Gi Seob[Forensics investigator] (Ep. 6)Guest Role
- Ko Ha EunKo Ha EunGuest Role
- Lee Jae Hak[Student]Guest Role
- Jung Se Hyun[Student]Guest Role
- Kim Kyung Min[Student]Guest Role
- Choi Ha Won[Student]Guest Role
Unknown
- Lee Min Wook Unknown
- Yu Ji Wan Unknown
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