The Whistleblower

Cinematography

• 
  Jeong Jong Heon

Director

• 
  Im Soon Rye

Editor

• 
  Kim Sun Min

Producer

• 
  Lee Chun Yun

Screenwriter

• 
  Lee Choon Hyung

Main Role

• 
  Park Hae Il

  PD Yoon Min Chul

  Main Role
• 
  Yoo Yeon Seok

  Sim Min Ho

  Main Role
• 
  Lee Kyung Young

  Lee Jang Hwan

  Main Role
• 
  Park Won Sang

  Lee Sang Ho

  Main Role

Support Role

• 
  Song Ha Yoon

  Kim I Seul

  Support Role
• 
  Ryu Hyun Kyung

  Kim Mi Hyeon

  Support Role
• 
  Lee Mi Do

  Kang Hyo Jin

  Support Role
• 
  Kim Seung Tae

  Professor Kang [Hankook University]

  Support Role
• 
  Hwang Jae Won

  Park Soo Hyun

  Support Role
• 
  Nam Myung Ryul

  Yoo Jong Jin [Professor]

  Support Role
• 
  Kim Soo An

  Sim Su Bin

  Support Role
• 
  Park Ji So

  Yun Ji Ho

  Support Role
• 
  Kim Kang Hyun

  Lee Do Hyeong

  Support Role
• 
  Park Sung Hyun

  [Lee Jang Hwan's bodyguard]

  Support Role
• 
  Jung Hyung Suk

  [Lee Jang Hwan's secretary]

  Support Role
• 
  Kim Dae Heung

  [Ice box man]

  Support Role
• 
  Kim Jung Soo

  [Korea University collaborating professor]

  Support Role
• 
  Choi Gyo Shik

  [Veterinarian]

  Support Role
• 
  Lee Bong Gyu

  [Monk]

  Support Role
• 
  Park Jin Yeong

  [Broadcasting station executive #2]

  Support Role
• 
  Park Yong Soo

  [Broadcasting station executive]

  Support Role
• 
  Kim Young Seon

  [Country supermarket man]

  Support Role
• 
  Hee Woo Support Role

Guest Role

• 
  Kwon Hyuk

  [Tracking producer #4]

  Guest Role
• 
  Kim Chan Yi

  [Producer tracking]

  Guest Role
• 
  Kim Sang Il

  [Reporter]

  Guest Role
• 
  Heo Woong

  [Human egg trading office man]

  Guest Role
• 
  Park Ji An

  [Lecture hall female college student #2]

  Guest Role
• 
  Kim Won Hae

  [Taxi driver]

  Guest Role
• 
  Jeon Soo Ji

  [Researcher #1]

  Guest Role
• 
  Yoo Jae Myung

  [Hospital director]

  Guest Role
• 
  Lee Seung Jun

  [Reporter 1]

  Guest Role
• 
  Park Sung Geun

  [Tracking producer #2]

  Guest Role
• 
  Nam Jin Bok

  [Van driver]

  Guest Role
• 
  Han Ki Joong

  [Director of National Intelligence Service]

  Guest Role
• 
  Kwon Hae Hyo

  [Broadcasting station director]

  Guest Role
• 
  Hee Jung Guest Role

Cameo

• 
  Jang Gwang

  [Broadcasting station president]

  Cameo
• 
  Choi Yong Min

  [Minister of science and technology]

  Cameo
• 
  Kim Young Jae

  [Press conference MC]

  Cameo
• 
  Hwang Jung Min

  [Woman at old house]

  Cameo

Bit part

• 
  Choi Hyo Sang

  [Newspaper copyreader #1]

  Bit part
• 
  Sung Do Hyun

  [CEO's chauffeur]

  Bit part
• 
  Lee Do Yoon

  [Reporter #5]

  Bit part
• 
  Seo Ji Won

  [Ob/Gyn specialist] (Voice)

  Bit part
• 
  Lee Jong Woon

  [Newspaper desk]

  Bit part
• 
  Han Sang Gyun

  [DBC anchor]

  Bit part
• 
  Yu Min Seok

  [Subway elder]

  Bit part
• 
  Jang Moon Gyu

  [Waiting room man #2]

  Bit part
• 
  Kwon Bum Taek

  [Judge]

  Bit part
• 
  Lee Hwa Ryong

  [Min Cheol's friend]

  Bit part
• 
  Kim Ji Hoon

  Mr. Kim

  Bit part
• 
  Oh Chang Kyung

  [Taxi driver]

  Bit part
• 
  Kim Sae Byeok

  [Researcher]

  Bit part
• 
  Kim Tae Hoon

  [Researcher]

  Bit part
• 
  Choi Hee Jin

  [Reporter]

  Bit part
• 
  Kim Kyung Ran

  [Old woman]

  Bit part