Chief Producer
Composer
Director
Screenwriter
Main Role
- Park Seo Joon Main Role
- Kim Ji Won Main Role
- Ahn Jae Hong Main Role
- Song Ha Yoon Main Role
Support Role
- Kim Sung OhHwang Jang Ho [Dong Man's coach]Support Role
- Jin Hee KyungHwang Bok Hee [Landlord / mysterious woman]Support Role
- Lee ElijahPark Hye Ran [Dong Man's ex-girlfriend]Support Role
- Kim Gun WooKim Tak Soo [MMA Fighter]Support Role
- Yang Jae YoungChoi Won Bo [Tak Soo's coach]Support Role
- Chae Dong HyunYang Tae Hee [Tak Soo's manager]Support Role
- Pyo Ye JinJang Ye Jin [Joo Man's colleague]Support Role
- Son Byung HoKo Hyung Shik [Dong Man's father]Support Role
- Kim Ye RyungPark Sun Yang [Dong Man's mother]Support Role
- Jeon Bae SooChoi Jeon Gap [Ae Ra's father]Support Role
- Kim Hee ChangManager Choi [Joo Man's boss]Support Role
- Kim Sung BumLee Byung Joo [Jang Ho's student]Support Role
- Jung Soon WonHan Doo Ho [Jang Ho's student]Support Role
- Kang Gi DoongJang Kyung Goo [Dong Man's producer friend]Support Role
- Choi Woo ShikPark Moo Bin [Dong Man's middle school classmate]Support Role
- Baek Soo JangKim Chan Ho [Joo Man's work colleague]Support Role
- Jo Yeon HoKo Dong Man [Young]Support Role
- Lee Han SeoChoi Ae Ra [Young]Support Role
- Kim Ha YunBaek Seol Hee [Young]Support Role
- Lee DalGeon SuSupport Role
Guest Role
- Baek Ji Won[Ae Ra & Seol Hee's teacher] (Ep. 1)Guest Role
- Lee Chae Eun[Dong Man's blind date] (Ep. 1)Guest Role
- Kwak Dong YeonKim Moo Gi [Ae Ra's ex-boyfriend] (Ep. 1)Guest Role
- Jung Soo Young[Moo Ki's new girlfriend] (Ep.1)Guest Role
- Hwang Bo RaPark Chan Sook [Ae Ra's ex-classmate] (Ep. 1-2)Guest Role
- Jin Ji HeeJang Bo Ram [Dong Man's classmate] (Ep. 1 & 7)Guest Role
- Oh Eui ShikManager Oh [Dong Man's manager] (Ep. 2-3)Guest Role
- Yoon Na MooShi Kyung [Moo Bin's colleague] (Ep. 2 & 7)Guest Role
- Go Geon Han[Moo Bin's colleague] (Ep. 2, 7)Guest Role
- In Gyo JinKim In Gyo [Department store manager] (Ep. 3 & 5)Guest Role
- Go Na HeeKo Dong Hee [Young] (Ep. 4)Guest Role
- Jo Mi Ryung[Department store VIP customer] (Ep. 5)Guest Role
- Yoon Sa BongKim Joo Hye [Joo Man's sister] (Ep. 6)Guest Role
- Z HeraSonia [Tak Soo's partner] (Ep. 6 & 8)Guest Role
- Lee Jung EunGeum Bok [Seol Hee's mother] (Ep. 6, 9-10, 13, 16)Guest Role
- Oh Young Shil[Joo Man's mother] (Ep. 6, 13, 15)Guest Role
- Baek Hyun Joo[Daecheon Motel's owner] (Ep. 9-10)Guest Role
- Kim Hak SeonBaek Jang Soo [Seol Hee's father] (Ep. 9-10, 16)Guest Role
- Jo Eun YooKo Dong Hee [Dong Man's sister] (Ep. 11, 15-16)Guest Role
- Kwak Shi YangKim Nam Il [Landlord's son] (Ep. 11-16)Guest Role
- Lee Kan Hee[Ye Jin's mother] (Ep. 9 & 12)Guest Role
- Julien KangJohn Carlos (Ep. 13-16)Guest Role
- Im Han BinKim Joo Man [Young] (Ep. 16)Guest Role
- Park Gyu Young[Joo Man's new intern] (Ep. 16)Guest Role
- Yang Kyung Won[Photographer] (Ep. 16)Guest Role
- Park Hyo Jun[Seol Hee's older brother] (Ep. 16)Guest Role
- Lee Ho Chul[Seol Hee's older brother] (Ep. 16)Guest Role
- Kwon Soon Joon[Taekwondo Boy]Guest Role
- Jung Hyun Seok[Doctor]Guest Role
- Lee Ah Jin[Department store employee]Guest Role
- Jeon Jin Oh[Department store manager]Guest Role
- Jin Hyun Kwang[RFC Department Head]Guest Role
- Lee Kang Wook[Daecheon’s festival PD]Guest Role
- Shin Sung Min[Fight match]Guest Role
- Lee Joong Yul[Bus driver]Guest Role
- Im Jae Geun[PD]Guest Role
- Gong Sang Ah[Dream Home's sales clerk]Guest Role
- Geum Kwang San[MMA Referee] (Ep.5)Guest Role
- Park Sang Hwi[Reporter]Guest Role
- Lee Woon San[Surgeon]Guest Role
- Park Seung Joon[kid's younger brother]Guest Role
- Jung Ah Mi[Cheongane CEO]Guest Role
- Hong Ji Hee[Aera’s ex-classmate] (Ep.2)Guest Role
- Gong Min Jung[Aera’s ex-classmate] (Ep,2)Guest Role
- Lee Seo Hwan[Homeroom teacher]Guest Role
- Hong Seo Joon[Hyung Shik's boss] (Ep. 12)Guest Role
- Han Sa Myung[Delivery man]Guest Role
Unknown
- Choi Na Moo Unknown
- Han Geu Rim Unknown
- Kim Se Jun Unknown
- Jang Tae Min Unknown
- Hong Boo Hyang Unknown
- Min Jung Sup Unknown
- Park Joo Yong Unknown
- Go Byung Taek Unknown
- Kim In Woo Unknown
- Song Ha Rim Unknown
- Choi Hyo EunSsam MaiweiUnknown
- Son Jung Rim Unknown
- Choi Young Unknown
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