Assistant Director
Composer
Director
Screenwriter
Main Role
- Choi Woo Shik Main Role
- Kim Da Mi Main Role
- Kim Sung Cheol Main Role
- Roh Jeong Eui Main Role
Support Role
- Ahn Dong Goo Support Role
- Park Jin Joo Support Role
- Seo Jung Yeon Support Role
- Park Won Sang Support Role
- Cha Mi Kyung Support Role
- Jeon Hye Won Support Role
- Jo Bok Rae Support Role
- Lee Seung Woo Support Role
- Heo Jun Seok Support Role
- Park Yeon Woo Support Role
- Yoon Sang Jung Support Role
- Cha Seung Yeup Support Role
- Park Do Wook Support Role
- Ahn Soo Bin Support Role
- Jung Kang Hee Support Role
Guest Role
- Seo Han Gyeol Guest Role
- Lee Joon Hyuk Guest Role
- Kwak Dong Yeon Guest Role
- Lee Seon Hee Guest Role
- Park Mi Hyun Guest Role
- Kang Gi Doong Guest Role
- Song Ha HyunChoi Woong [Young] (Ep. 1, 5, 7, 15-16)Guest Role
- Kim Ji HoonKim Ji Woong [Young] (Ep. 1, 5, 7, 15-16)Guest Role
- Lee Seung Joon[Homeroom teacher] (Ep. 1, 7)Guest Role
- Kim Jin Goo[High school ceremony speaker] (Ep. 1)Guest Role
- Lee Ji Wan[Yeon Soo's classmate] (Ep. 6)Guest Role
- Min Eung Shik[Art teacher] (Ep. 6, 11)Guest Role
- Moon Ha Yeon[Charity event volunteer] (Ep. 7)Guest Role
- Lee Rang Seo[Charity event volunteer] (Ep. 7)Guest Role
- Noh Sung Eun[Charity event volunteer] (Ep. 7)Guest Role
- Choi Sol Hee[Charity event volunteer] (Ep. 7)Guest Role
- Lee Se Rang[Villager] (Ep. 8)Guest Role
- Uhm Hye Soo[Choi Woong's fan club] (Ep. 8)Guest Role
- Park Sang Hyun[Restaurant diner] (Ep. 10)Guest Role
- Kim Bi BiKang Yeon Ju (Ep. 11)Guest Role
- Bae Bo Ram[Interviewer] (Ep. 11)Guest Role
- Jung Ae Hwa[Jujubes seller] (Ep. 11)Guest Role
- Kim Sung Yong[Jjongjjong's owner] (Ep. 11)Guest Role
- Kim Ye Na[Student dog walker] (Ep. 11)Guest Role
- Kim Joo Heon[Himself / Voiceover] (Ep. 12)Guest Role
- Hong A Ron[Sol Yi's blind date] (Ep. 12)Guest Role
- Kang Ro Chae[Interviewer] (Ep. 13)Guest Role
- Oh Byeol HaKook Yeon Su [Young] (Ep. 14)Guest Role
- Choi Yi Sun[Director] (Ep. 14)Guest Role
- Kim Na Eun[Playground bully girl] (Ep. 14)Guest Role
- Won Chun Gyu[Crew member] (Ep. 15)Guest Role
- Im Yu Ran[Diner leaving] (Ep. 16)Guest Role
- Kwak Na Yeon[Diner leaving] (Ep. 16)Guest Role
- Noreen Joyce Guerra[Office worker]Guest Role
- Ahn Se Eun Guest Role
- Won Ha Neul[NJ's backup dancer]Guest Role
Unknown
- Kim Min Ho Unknown
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