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Im Chae-Heon as Jjang-dol (voice) |
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Yoo Dong-kyun as Dr. Ko (voice) / Junsu Han (voice) |
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Kim Seung-tae as Ta-jo (voice) / Chief Secretary (voice) |
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Kim Sara as Hong Jin-yi (voice) |
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Kim Young-jin-III as Heejang Jeon (voice) / General (voice) |
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전숙경 as Han Sook-hee (voice) / Jang Young-min (voice) |
| Writing | 이대희 | Writer |
| Sound | Lee Yo-seop | Music |
| Sound | Ryu Hee-cheon | Music |
| Sound | Lee Yo-seop | Original Music Composer |
| Sound | Lee Yo-seop | Musician |
| Sound | Ryu Hee-cheon | Musician |
| Sound | Ryu Hee-cheon | Original Music Composer |
| Crew | Ryu Hee-cheon | Post Production Supervisor |
| Sound | Ryu Hee-cheon | Music Sound Design and Processing |
| Sound | Park Dong-ju | Sound Mixer |
| Sound | Ryu Hee-cheon | Sound Designer |
| Sound | Lee Ju-mi | Sound Effects Editor |
| Sound | Choi Hyung-min | Sound Designer |
| Art | 이대희 | Storyboard Artist |
| Art | Choi Han-i | Storyboard Artist |
| Art | Jo Yeon-joo | Background Designer |
| Art | Kim Dae-won | Storyboard Artist |
| Art | 이대희 | Conceptual Design |
| Art | 이대희 | Background Designer |
| Art | Kim Haru | Background Designer |
| Art | Jo Jung-deok | Storyboard Artist |
| Art | Lee Hyun-joong | Conceptual Design |
| Visual Effects | 이대희 | Character Designer |
| Visual Effects | Kyung-goo Kim | Animation |
| Art | Jo Yeon-joo | Prop Designer |
| Art | Go Won-sang | Background Designer |
| Art | Kim Haru | Prop Designer |
| Art | Park Jae-cheol | Background Designer |
| Visual Effects | Kim Seok-dong | 3D Modeller |
| Lighting | Yoo Young-hun | Lighting Design |
| Visual Effects | 이대희 | Mechanical Designer |
| Visual Effects | Jo Jung-deok | Mechanical Designer |
| Art | 강길호 | Title Designer |
| Lighting | Cha Hyun-jun | Lighting Design |
| Crew | Song Seung-hee | Systems Administrators & Support |
| Visual Effects | Kim Seok-dong | Visual Effects |
| Visual Effects | Baek Hye-jin | 3D Modeller |
| Visual Effects | Go Min-seon | 3D Modeller |
| Art | Song Je-ho | Title Designer |
| Visual Effects | Gong Jin-yeo | Visual Effects |
| Visual Effects | Go Won-sang | Mechanical Designer |
| Art | 강길호 | Storyboard Artist |
| Visual Effects | Go Min-seong | Visual Effects |
| Lighting | Lee Ki-nam | Lighting Design |
| Production | Hau Jeong | Production Manager |
| Visual Effects | Sing Yu-cheol | 3D Modeller |
| Editing | 이대희 | Editor |
| Visual Effects | Baek Hye-jin | Simulation & Effects Artist |
| Editing | 강길호 | Editor |
| Visual Effects | Jeong Deok-young | Compositing Artist |
| Editing | Park Gyu-ri | Editor |
| Directing | 이대희 | Director |
