Composer
Director
Screenwriter
Main Role
- Park Hee SoonPark Moo JinMain Role
- Choo Ja HyunKang In HaMain Role
- Oh Man Suk Main Role
- Cho Yeo JungSeo Eun JuMain Role
- Nam Da ReumPark Sun HoMain Role
- Kim Hwan HeePark Soo HoMain Role
Support Role
- Seo Dong HyunOh Joon Seok [Jin Pyo's son]Support Role
- Lee Chung AhKang Jun Ha [Sun Ho's aunt]Support Role
- Yoon Na MooLee Jin Woo [Sun Ho's homeroom teacher]Support Role
- Lee Jae InHan Dong Hee [Dong Soo's sister]Support Role
- Seo Young JooHan Dong Soo [Dong Hee's brother]Support Role
- Yang Han YeolLee Ki ChanSupport Role
- Kang Hyun WookNa Sung JaeSupport Role
- Geum Joon HyunJo Young ChulSupport Role
- Lee Ji HyunIm Sook Hee [Young Chul's mother]Support Role
- Jung Jae SungBae Sang Bok [Vice Principal]Support Role
- Hwang Tae KwangLee Sang Woo [Ki Chan's father]Support Role
- Kang Mal GeumEun Kyeong Seon [Sung Jae's mother]Support Role
- Jo Jae RyongPark Seung Man [Police officer]Support Role
- Myung Gye NamMyung Sun [Principal]Support Role
- Kim Hak SeonShin Dae Gil [School security guard]Support Role
- Sung Ki YoonNa Pil Joon [Sung Jae's father]Support Role
- Myung Ji YunKwon Ji Hye [Ki Chan's mother]Support Role
- Park Ji HuJung Da HeeSupport Role
- Choi Yoo SongChoi Kyung Sook [Da Hee's mother]Support Role
- Choi Deok MoonChoi Ji Kyung [Reporter]Support Role
- Kim Chul Yoon[Florist]Support Role
- Joo Suk JeShin Kang HoonSupport Role
- Heo Jung DoKi Deok ChulSupport Role
- Moon Ha YeonKim Bo MiSupport Role
- Ahn So YoHam Young JooSupport Role
- Jo So Young Support Role
- Jung Min Joon Support Role
Guest Role
- Kang Ae Shim[In Ha & Joon Ha's mother]Guest Role
- Ahn Nae Sang[Doctor] (Ep. 14-15)Guest Role
- Song Hoon[Shin Dae Gil's cousin]Guest Role
- Noh Jae HoonSeo Ji ManGuest Role
- Kim Ha Neul Guest Role
- Han Ji Eun[Woman #2]Guest Role
- Lee Sung Min[Chief of police] (Ep. 10)Guest Role
- Park Yong[Dong Soo's employer]Guest Role
- Jung Wan Hee(Ep. 2)Guest Role
- Lee Seo HwanJung Man SeopGuest Role
Unknown
- Song Yo Sep Unknown
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