Luck-Key

Art Director

• 
  Lee Ha Jun

Cinematography

• 
  Kim Tae Gyeong

Composer

• 
  Bang Jun Seok

Director

• 
  Lee Kye Byuk

Editor

• 
  Yang Jin Mo

Producer

• 
  Jeong Hui Sun

Screenwriter

• 
  Jang Yoon Mi

Visual Effects

• 
  Choi Jae Cheon
• 
  Lee Dong Hun
• 
  Lee Jong Mu
• 
  Lee Seung Hun
• 
  Jo Yong Seok

Main Role

• 
  Yoo Hai Jin

  Choi Hyeong Uk

  Main Role
• 
  Lee Joon

  Yun Jae Seong

  Main Role
• 
  Im Ji Yeon

  Song Eun Ju

  Main Role
• 
  Jo Yoon Hee

  Ri Na

  Main Role

Support Role

• 
  Ko Jun

  Kwon Hui Rak

  Support Role
• 
  Cha Soon Hyung

  Choi Mun Seok

  Support Role
• 
  Jo Han Chul

  Il Seong

  Support Role
• 
  Cha Yeob

  Assistant Director Cho

  Support Role
• 
  Kim Ji An

  Kang Yu Na

  Support Role
• 
  Lee Sung Wook

  Nam Myeong Jin [Assistant]

  Support Role
• 
  Jung Hee Tae

  Kim Pil Gyu / Director Kim

  Support Role
• 
  Lee Dong Yong

  Choi Dong Yong / Department Head Choi

  Support Role
• 
  Song Yo Sep

  Cho Cheol Mu / Department Head Cho

  Support Role
• 
  Geum Kwang San

  Han Jang Hyeok

  Support Role
• 
  Lee Seung Chul

  Han Jang Hyeok [Real]

  Support Role
• 
  Kim Han Kyu

  Seok Min U

  Support Role
• 
  Seong Byung Sook

  [Ri Na's mom]

  Support Role
• 
  Park Seung Tae

  [Ri Na's grandmother]

  Support Role
• 
  Kim Min Sang

  [Movie director]

  Support Role
• 
  Lee Yong Nyeo

  [Elderly landlady]

  Support Role
• 
  Cho Han Na Support Role

Guest Role

• 
  Lim Geun Seo

  [Subordinate]

  Guest Role

Bit part

• 
  Lee Dong Hwi

  Min Seok

  Bit part
• 
  Seo Young Hwa

  [Eun Ju's mom]

  Bit part
• 
  Lee Yool

  [Jae Sung's friend]

  Bit part
• 
  Kim Ik Tae

  [Jae Sung's father]

  Bit part
• 
  Lee Ha Nui

  [Min Seok's manager]

  Bit part
• 
  Jang Hyuk Jin

  [Luxury villa man]

  Bit part
• 
  Na Soo Yoon

  [One sided love woman]

  Bit part
• 
  Moon Jong Won

  [Radish kimchi]

  Bit part
• 
  Lee Myung Ja

  [Bill elderly woman]

  Bit part
• 
  Jang Woo Jin

  [Undang director]

  Bit part
• 
  Choi Dae Sung

  [Director #2]

  Bit part
• 
  An Chae Mi

  [Administration employee]

  Bit part
• 
  Choi Won

  [Subway director]

  Bit part
• 
  Park Eun Mi

  [Deco guest #2]

  Bit part
• 
  Yoon Jong Goo

  [Van driver]

  Bit part
• 
  Hong Joon Woo

  [Martial arts studio team member]

  Bit part
• 
  Lee Gyu Hyun

  [Martial arts studio team member]

  Bit part
• 
  Ryu Sung Hoon

  [Martial arts studio team member]

  Bit part
• 
  Koo Min Hyuk

  [Realtor]

  Bit part
• 
  Lee Joo Won

  [Actress in bloody action scene]

  Bit part
• 
  Chae Hee Jae

  [Subordinate #1]

  Bit part
• 
  Kim Jung Yeon

  [TV female high school student]

  Bit part
• 
  Park Gyoo Ri

  [Gimbap stall student]

  Bit part
• 
  Ok Joo Ri

  [Woman at the supermarket]

  Bit part
• 
  Jeon Hye Bin

  [Drama leading actress]

  Bit part
• 
  Choi Young Min

  [Studio martial arts team]

  Bit part
• 
  Cha Sung Je

  [Neighborhood elementary school student #1]

  Bit part
• 
  Uhm Hye Soo

  [TV high school student #2]

  Bit part
• 
  Hong Seong O

  [Filming crew member]

  Bit part
• 
  Kang Ji Hoon

  [Greeting male resident]

  Bit part
• 
  Baek Chun Ki

  [Subway assistant director]

  Bit part
• 
  Ok Il Jae

  [Martial arts team]

  Bit part
• 
  Kim Jong Hoon

  [Redhead delivery man]

  Bit part
• 
  Anupam Tripathi

  [Indian neighbour]

  Bit part
• 
  Han Sang Gyun

  [Martial arts team at the set]

  Bit part
• 
  Oh Hyun Jin

  [Market place assistant director]

  Bit part
• 
  Kim Hyun Sook

  [Hwatu grandmother #1]

  Bit part
• 
  Kim Se Jun

  [Subordinate #2]

  Bit part
• 
  Park Dae Kyu

  [Subordinate]

  Bit part
• 
  Yang Chang Wan

  [Shopping area director]

  Bit part
• 
  Choi Yo Woon

  [Alley resident]

  Bit part
• 
  Kim Shi Woo

  [Martial arts team on set]

  Bit part
• 
  Kim Dong In

  Undang Satto

  Bit part

Unknown

• 
  Shin Soo Hyun Unknown