| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Kim Suk-won | Crew | Sound | Sound Supervisor | 8 |
 Isao Murayama | Crew | Writing | Screenplay | 8 |
Kohei Obara | Crew | Production | Executive Producer | 8 |
Hong Yoon-sung | Crew | Sound | Sound Re-Recording Mixer | 8 |
Kim Eun-jung | Crew | Sound | Sound Re-Recording Mixer, Foley, Sound Effects | 8 |
 Han Kwang-il | Crew | Production | Co-Executive Producer | 8 |
Han Kyung-Hoon | Crew | Sound | Original Music Composer, Music Director | 8 |
Kim Joong Cheol | Crew | Art | Storyboard Artist | 1 |
Kang Hei Chul | Crew | Directing | Director | 5 |
Park So Young | Crew | Directing | Director | 1 |
Lee Seung-wook | Crew | Production | Associate Producer | 8 |
Han Seung Woo | Crew | Directing | Director | 2 |
Ji Hyeon Choi | Crew | Visual Effects | Lead Character Designer | 8 |
Kim Eun Joo | Crew | Art | Storyboard Artist | 1 |
Byung Hee Jo | Crew | Art | Storyboard Artist | 1 |
Lee Jae Bum | Crew | Art | Storyboard Artist | 1 |
Park Ju Hyeon | Crew | Art | Storyboard Artist | 1 |
Jo Hun | Crew | Art | Storyboard Artist | 1 |
Moon Hoo Young | Crew | Art | Storyboard Artist | 1 |
Dae Woo Lee | Crew | Art | Art Direction | 8 |
Jeong-eun Song | Crew | Sound | Sound Effects | 8 |
Hyun Joon Kim | Crew | Sound | Foley, Sound Effects | 8 |
Lee Gyu-chang | Cast | Actor | Na Yu Eop / Park Han Gyul / Homeroom Teacher (voice) | 8 |
 Bae Jeong-mi | Cast | Actress | Choi Soo Jeong / Deok Hwa's Grandmother / Female Student (voice) | 8 |
 Shim Kyu-hyuck | Cast | Actor | Park Hyung Seok (Small) (voice) | 8 |
Hwang Chang-yung | Cast | Actor | Pyun Deok Hwa / Lee Tae Sung / Oira (voice) | 8 |
 Nam Doh-hyeong | Cast | Actor | Jin Ho Bin / Jang Gi Seok / Kim Mae Sik / Park Bum Jae (voice) | 8 |
 Sa Moon-young | Cast | Actress | Park Ha Neul / Female Student / Female Extra (voice) | 8 |
 Kim Hyeon-uk | Cast | Actor | Lee Hyun Do / Go Jeong Gi / Kim Seul Bum (voice) | 8 |
 Jeong Jae-heon | Cast | Actor | Vasco / CEO / Lee Nam Su (voice) | 8 |
 Ryu Seung-gone | Cast | Actor | Lee Jin Seong / Park Jong Gun (voice) | 8 |
Lee Kyung Tae | Cast | Actor | Park Ji Ho (voice) | 8 |
Kim Ok-kyung | Cast | Actress | Hyung Seok's Mom (voice) | 8 |
 Han Shin | Cast | Park Hyung Seok (Big) (voice) | 8 | |
| Person | Type | Job | Role(s) | Episodes |
