| Person | Type | Job | Role(s) |
|---|---|---|---|
 Min So-yeon | Crew | Writing | Adaptation |
Lee Jae-hak | Crew | Sound | Original Music Composer |
Lee Jae-yun | Crew | Writing | Original Story |
Byun Bong-hyun | Crew | Production | Executive Producer |
Lee Seung-yeop | Crew | Sound | Sound Supervisor |
Lee Sung-jae | Crew | Camera | Director of Photography |
Kim Hyung-ju | Crew | Editing | Editor |
Shin Ji-young | Crew | Costume & Make-Up | Costume Design |
Ahn Seong-hyun | Crew | Production | Producer, Adaptation |
Dawon Jung | Crew | Directing | Director, Writer |
Kim Su-jin | Crew | Production | Production Assistant |
 Heo Min-heoi | Crew | Production | Executive Producer |
Son Min-jeong | Crew | Art | Production Design |
Na Jun-o | Crew | Writing | Original Story |
Park Min-hui | Crew | Costume & Make-Up | Makeup & Hair |
Kim Young-rok | Crew | Sound | Sound Supervisor |
Lee Dong-hwa | Crew | Lighting | Lighting Director |
Lee Seon-yeong | Crew | Production | Executive Producer's Assistant |
Lim Myeong-gyun | Crew | Production | Executive Producer |
Lim Byeong-woo | Crew | Sound | Sound Director |
Tae Wook | Crew | Art | Props |
 Heo Myeong-haeng | Crew | Crew | Fight Choreographer |
 Kwon Tae-ho | Crew | Crew | Stunts |
Jeon Gun-ik | Crew | Visual Effects | Special Effects Supervisor |
Yoo Mi-jin | Crew | Crew | Stunts |
Hwang Jung-ho | Crew | Sound | Production Sound Mixer |
Yoon Seong-min | Crew | Crew | Stunts |
Lee Bong-woo | Crew | Art | Set Decoration |
Kang Moo-seong | Crew | Art | Set Decoration |
Cho Gi-hun | Crew | Camera | Key Grip |
 Sung Dong-il | Cast | Actor | Hwang Bok-hyun |
 Lim Hyun-sung | Cast | Actor | Cyber Investigations Police |
 Ahn Jae-hong | Cast | Actor | Happy Balloons Boss |
 Ha Jung-woo | Cast | Actor | Motel Staff |
 Ra Mi-ran | Cast | Actress | Park Mi-young |
 Han Soo-hyun | Cast | Actor | Detective Kwak |
 Yoon Sang-hyun | Cast | Actor | Jo Ji-chul |
 Choi Soo-young | Cast | Actress | Yang Jang-mi |
 Jun Suk-ho | Cast | Actor | Detective Oh |
 Bae Yoo-ram | Cast | Actor | Helium Balloon High Schooler |
 Lee Re | Cast | Actress | Young Ji-hye |
 Lee Sung-kyoung | Cast | Actress | Cho Ji-hye |
 Cho Byeong-kyu | Cast | Actor | Youngest Detective |
 Wi Ha-jun | Cast | Actor | Woo-jun |
 Kim Gwang-seop | Cast | Actor | Shinchon Sunglasses Man |
 Yeom Hye-ran | Cast | Actress | Chief Civil Service Officer |
 Joo Woo-jae | Cast | Actor | Philip |
 Jeong Doo-won | Cast | Actor | Flirty Man at Club |
 Kang Hong-suk | Cast | Actor | Yong-seok |
 Lee Jung-min | Cast | Actress | Chae Sook-hee |
 Kim Min-kyung | Cast | Actress | Woman & Youth Division Detective |
Jack Lyons | Cast | Actor | JD the Tatooist |
Kim Ji-na | Cast | Actress | Former Female Taskforce |
 Kim Do-wan | Cast | Actor | Chan-young |
 Park So-eun | Cast | Actress | Seo-jin |
 Ok Ja-yeon | Cast | Actress | New Pacific Suicide Female Victim |
 Seol Chang-hee | Cast | Actor | Seo-jin's Doctor |
 Ahn Seong-bong | Cast | Actor | Big Man |
Gambhir Man Shrestha | Cast | Actor | Arab Owner of Big-sized Clothes Store |
 Baek Seung-hwan | Cast | Police Chief | |
 Chris Lyon | Cast | Actor | Carmelo |
 So Hee-jung | Cast | Actress | Se-jin's Mother |
 Park Se-jin | Cast | Actress | Girl Cop |
 Jo Hye-joo | Cast | Actress | Soo-bin |
 Anupam Tripathi | Cast | Actor | Arabian Subordinate |
 Ahn Chang-hwan | Cast | Actor | Kang Sang-doo |
 Kim Tae-jun | Cast | Actor | Criminal Affairs Division Civil Petitioner |
 Choi Hye-jin | Cast | Actress | Back Street Nostalgic Girl |
| Person | Type | Job | Role(s) |
