| Person | Type | Job | Role(s) |
|---|---|---|---|
 Pang Eun-jin | Crew | Directing | Director |
 Lee Hyun-seung | Crew | Directing | Director |
 Kim Tae-yong | Crew | Directing | Director |
 Choi Chan-min | Crew | Camera | Director of Photography |
Yoon Seong-ho | Crew | Directing | Director |
Jeon Gye-soo | Crew | Directing | Director |
 Jang Seong-ho | Crew | Visual Effects | Visual Effects Supervisor |
Kim Hyung-ju | Crew | Editing | Editor |
Park Kwan-su | Crew | Production | Producer |
 Min Hwan-ki | Crew | Production | Supervising Producer |
Han Myeong-suk | Crew | Costume & Make-Up | Costume Design |
Lee Chung-jik | Crew | Production | Supervising Producer |
Sung Su-ah | Crew | Editing | Editor |
 Oh Ji-hye | Cast | Actress | Chul Goo's Mother (U and Me) |
 Sung Ji-ru | Cast | Actor | Teacher (Blue Birds on the Desk) |
 Moon Sung-keun | Cast | Actor | Vice Principal (Relay) |
 Jung Yu-mi | Cast | Actress | Health Teacher (Relay) |
 Park Bo-young | Cast | Actress | Hee So (Relay) |
 Nam Ji-hyun | Cast | Actress | Park Jin-ju (Blue Bird on the Desk) |
 Son Eun-seo | Cast | Actress | Gyu Ri (Relay) |
 Kwon Eun-soo | Cast | Actress | So Young (U and Me) |
Jung Jin-an | Cast | Ma Jin-ju (Blue Bird on the Desk) | |
 Kim Mi-hui | Cast | Actress | (Relay) |
Choi Won-tae | Cast | Actor | Choi Young-chan (Girl on the Run) |
 Jung Yoo Mi | Cast | Health Teacher (Relay) | |
Choi Yo-han | Cast | Actor | |
| Person | Type | Job | Role(s) |
