| Person | Type | Job | Role(s) |
|---|---|---|---|
 Dalpalan | Crew | Sound | Original Music Composer |
 Jung Doo-hong | Crew | Crew | Fight Choreographer |
 Lee Eugene | Crew | Production | Producer |
 Kim Jee-woon | Crew | Writing | Screenplay, Director |
 Oh Jung-wan | Crew | Production | Producer |
Choi Jae-geun | Crew | Editing | Editor |
 Kim Ji-yong | Crew | Camera | Director of Photography |
 Jang Young-gyu | Crew | Sound | Original Music Composer |
Kwak Jung-ae | Crew | Costume & Make-Up | Costume Design |
Lee So-yeong | Crew | Directing | Assistant Director |
Choi Pyung-ho | Crew | Production | Producer |
 Ryu Seong-hie | Crew | Art | Production Design |
Shin Sang-yeul | Crew | Lighting | Lighting Director |
Kim Jung-hwa | Crew | Production | Line Producer |
Lee Hee-eun | Crew | Costume & Make-Up | Special Effects Makeup Artist |
Lee Yong-gi | Crew | Editing | Colorist |
Han Jae-min | Crew | Editing | Colorist |
Kim Do-hee | Crew | Costume & Make-Up | Makeup & Hair |
 Heo Myeong-haeng | Crew | Crew | Fight Choreographer |
Kim Kyung-tae | Crew | Sound | Production Sound Mixer |
Ji Jung-hyeon | Crew | Crew | Stunts |
 Lee Byung-hun | Cast | Actor | Sun-woo |
 Eric Mun | Cast | Actor | Tae-goo |
 Lee Ki-young | Cast | Actor | Oh Moo-seong |
 Hwang Jung-min | Cast | Actor | Mr. Baek |
 Oh Kwang-rok | Cast | Actor | Gangster |
 Oh Dal-su | Cast | Actor | Myeong-goo |
 Jin Goo | Cast | Actor | Min-gi |
 Jeon Kuk-hwan | Cast | Actor | Chairman Baek |
 Kim Hae-gon | Cast | Actor | Tae-woong |
 Kim Han | Cast | Actor | Se-yoon |
Jang Jae-yong | Cast | Recording Studio Engineer | |
 Shin Min-a | Cast | Actress | Hee-soo |
 Kim Roi-ha | Cast | Actor | Moon-seok |
 Kim Yeong-cheol | Cast | Actor | Mr. Kang |
 Jung Yu-mi | Cast | Actress | Mi-ae |
Lee Hang-soo | Cast | Chairman Won | |
Kim Hee-jin | Cast | Actress | Lounge Female Employee |
 Kwak Min-ho | Cast | Actor | Lounge Male Employee |
Kim Tae-hee | Cast | Actor | Waiting Room Player |
 Kim Ji-hoon | Cast | Actor | Pianist |
 Park Jin-woo | Cast | Actor | Cheol-moon |
 Kim Sung-oh | Cast | Actor | Moo-seong's Subordinate |
Yoo Joo-hyeon | Cast | Violinist | |
Lee Ji-hee | Cast | Violinist | |
Jang Han-seung | Cast | Leg Car | |
Jo Jung-hee | Cast | Night Club DJ | |
 Yoo Sang-seob | Cast | Actor | Moon-seok's Subordinate |
Kang Young-gu | Cast | Shoulder Bag | |
 Park Seong-gyoon | Cast | Actor | Shoulder Bag |
Domashchenko Vadym | Cast | Mikhail | |
Oh Yoo-jin | Cast | Actress | Korean Restaurant Employee |
Lee Seung-ho | Cast | Actor | Mr. Park |
 Lee Han-sol | Cast | Actor | Moo-seong's Subordinate |
Ahn Jang-hyeok | Cast | Actor | Passage Subordinate |
Choi Chang-kyun | Cast | Actor | Mr. Kang's Assistant |
Lee Kyeong-won | Cast | Recording Studio Female Employee | |
Park So-jeong | Cast | Hongdae Club Guest | |
 Woo Sang-jeon | Cast | Actor | Mr. Seong |
Heo Myeong-haeng | Cast | Actor | Shoulder Bag |
 Park Jong-min | Cast | Actor | Recording Studio Male Employee |
Sonny | Cast | Filipino Gang | |
Jeong Mi-hye | Cast | Actress | Middle-aged Woman |
Choi Si-yeong | Cast | Mr. Kang's Wife | |
Lee Seung-ho | Cast | Mr. Park | |
Hwang Dong-seok | Cast | Actor | Passage Subordinate |
Kim Eun-ji | Cast | Room Lady | |
 Park Seon-woong | Cast | Actor | Gyeong-pyo |
Kim Soo-nam | Cast | Shoulder Bag | |
Jeong Gye-soon | Cast | Grandmother | |
Lee Jae-ook | Cast | Taxi Driver | |
Kim Pan-seon | Cast | Meeting Room Subordinate | |
Jeong Won-kyeong | Cast | Pit Shoulder | |
Jo Seon-haeng | Cast | Mr. Kang's Driver | |
Kim In-oh | Cast | Night Club Employee | |
Seo Jeong-hee | Cast | Lounge Manager | |
Kim Hyo-hyeon | Cast | Bartender | |
Choi Hyo-hyeon | Cast | Bartender | |
Song Sang-ook | Cast | Lounge Male Employee | |
Kim Byeong-gook | Cast | Lounge New Manager | |
Hong Eun-mi | Cast | Lounge Guest | |
Kim Jae-ok | Cast | Lounge Guest | |
Ryoo Chang-hoon | Cast | Recording Studio Engineer Assistant | |
Song Jae-ha | Cast | Viola | |
Kang Min-hee | Cast | Double Bassist | |
Kwon Ye-ji | Cast | Hongdae Club Guest | |
Kwon Chae-yeong | Cast | Room Lady | |
Jeon Hye-min | Cast | Room Lady | |
| Person | Type | Job | Role(s) |
