 | Ha Jung-woo als Gang-rim |
 | Cha Tae-hyun als Kim Ja-hong |
 | Ju Ji-hoon als Hae Won-maek |
 | Kim Hyang-gi als Deok-choon |
 | Lee Jung-jae als King Yeomra |
 | Kim Dong-wook als Kim Su-hong |
 | Ye Su-jeong als Ja-hong's Mother |
 | Oh Dal-su als Prosecutor |
 | Im Won-hee als Prosecutor |
 | Seong Yu-bin als Young Kim Ja-hong |
 | Goo Seung-hyun als Young Kim Su-hong |
 | Lee Jun-hyuk als First Lieutenant Park Moo-sin |
 | Doh Kyung-soo als Private Won Dong-yeon |
 | Jung Hae-kyun als Byeon-seong / God of Murder Hell |
 | Kim Hae-sook als Cho-gang / God of Indolence Hell |
 | Kim Su-an als Tae-san / God of Lie Hell |
 | Lee Kyung-young als Oh-gwan / God of Injustice Hell |
 | Kim Ha-neul als Song-je / God of Betrayal Hell |
 | Jang Gwang als Jin-gwang / God of Violence Hell |
 | Kang Da-hyeon als Ji-yeon |
 | Yu Jun-sang als Trapped Firefighter |
 | Nam Il-woo als Heo Choon-sam |
 | Jung Ji-hoon als Heo Hyun-dong |
 | Kim Soo-ro als Cat Girl's Father |
 | Na Chul als Club Man |
 | Tae Won-seok als Military Police |
 | Oh Hee-jun als Interpreter Soldier |
 | Kim Tae-jun als Firefighter |
 | Lim Cheol-soo als Firefighter |
 | Hong In als Firefighter |
 | Kim Min-jong als Grim Reaper |
 | Ma Dong-seok als Sung-ju / Household God |
 | Kim G-rim als First Lieutenant Park's wife |
| Kim Yong-hwa | Director |
| Kim Yong-hwa | Screenplay |
| Kim Byung-seo | Director of Photography |
| Bang Jun-seok | Music |
| Ju Ho-min | Original Story |
| Choi Jee-sun | Producer |
| Kim Yong-hwa | Executive Producer |
| Cha Won-chun | Executive Producer |
| Kim Ho-sung | Producer |
| Cho Sang-kyung | Costume Design |
| Jin Jong-hyun | VFX Supervisor |
| Choi Hye-lim | Makeup & Hair |
| Shin Kyung-man | Lighting Director |
| Choi Tae-young | Sound Supervisor |
| Lee Mok-won | Production Design |
| Ko Dae-seok | Line Producer |
| Kim Jin-oh | Editor |
| Kim Hye-jin | Editor |
| Gang Hye-yeong | Sound Designer |
| Won Dong-yeon | Executive Producer |
| Jeong Gyeong-jae | Executive Producer |
| Yoon Jong-seok | Executive Producer |
| Kwak Tae-yong | Special Effects Makeup Artist |
| Hwang Hyo-kyun | Special Effects Makeup Artist |
| Kevin Kang | Digital Intermediate |
| Jung Seock-hee | CG Supervisor |
| Jin Hye-jung | Art Direction |
| Kim Byung-in | Supervising Dialogue Editor |
| Huh Soo Young | Co-Executive Producer |
| Jung Sung-jin | Visual Effects Supervisor |
| Jung Chul-min | Visual Effects Supervisor |
| Park Jin-young | Digital Intermediate |
| Park Jae-wan | Props |
| Shin Soo-jung | Script Supervisor |
| Hong Myeong-su | Lighting Technician |
| Lee Sang-joon | Production Sound Mixer |
| Kang Jong-ik | VFX Supervisor |
| Yoon Choong-yeol | VFX Artist |
| Yoon Dae-won | Special Effects Supervisor |
| Jang Hee-sun | Art Direction |
| Jay Seung Jaegal | VFX Supervisor |
| Chan-jin Chris Kim | Visual Effects Producer |
| Park Seong-hyeon | Compositing Artist |
