Parasyte: The Grey

Screenwriter

• 
  Ryu Yong Jae

Screenwriter & Director

• 
  Yeon Sang Ho

Main Role

• 
  Jeon So Nee

  Jung Soo In

  Main Role
• 
  Koo Kyo Hwan

  Seol Kang Woo

  Main Role
• 
  Lee Jung Hyun

  Choi Joon Kyung

  Main Role

Support Role

• 
  Kwon Hae Hyo

  Kim Cheol Min [Detective]

  Support Role
• 
  Kim In Kwon

  Kang Won Seok [Cheol Min’s junior]

  Support Role
• 
  Lee Hyun Kyun

  Kwan Hyuk Ju [Pastor]

  Support Role
• 
  Yoon Hyun Gil

  Seol Kyung Hee

  Support Role

Guest Role

• 
  Yong Jin

  Boss Jang (Ep. 1)

  Guest Role
• 
  Jin Yong Wook

  Lee Kyung Chun (Ep. 1)

  Guest Role
• 
  Lee Hyo Na

  [Parasite] (Ep. 1)

  Guest Role
• 
  Jeon Soo Ji

  [Soo In's mom] (Ep. 1)

  Guest Role
• 
  Park Shin Woon

  [Namil detective] (Ep. 1)

  Guest Role
• 
  Go Han Min

  [Foreign car man] (Ep. 1)

  Guest Role
• 
  Kim Ye Rin

  [EDM concertgoer] (Ep. 1)

  Guest Role
• 
  Jo Dong In

  [EDM festival parasite] (Ep. 1)

  Guest Role
• 
  Lee Yo Seob

  Sim Gyu Min (Ep. 2)

  Guest Role
• 
  Park Jae Hong

  [Gangster] (Ep. 2)

  Guest Role
• 
  Kwon Oh Jin

  [Pawn shop owner] (Ep. 2)

  Guest Role
• 
  Shin Min Jae

  [Motorcycle shop owner] (Ep. 2)

  Guest Role
• 
  Ji Min

  [Crying girl] (Ep. 3)

  Guest Role
• 
  Yoon Hee Chul

  [Motel owner] (Ep. 3)

  Guest Role
• 
  Hong Eui Joon

  [Joon Kyung's husband] (Ep. 3)

  Guest Role
• 
  Yoo Yong

  Ki Seok (Ep. 5)

  Guest Role
• 
  Moon Joo Yeon

  Seol Jin Hee (Ep. 5)

  Guest Role
• 
  Park Young Bok

  [Fruit buyer] (Ep. 5)

  Guest Role
• 
  Yoon Sung Won

  CEO Park (Ep. 6)

  Guest Role
• 
  Suda Masaki

  Izumi Shinichi (Ep. 6)

  Guest Role
• 
  Do Yong Gu

  [Mayor] (Ep. 6)

  Guest Role
• 
  Goo Shi Yeon

  [CEO Park's wife] (Ep. 6)

  Guest Role
• 
  Go Seo Hee

  [Won Seok's wife] (Ep. 6)

  Guest Role
• 
  Lee Taek Geun

  [Mayor's bodyguard] (Ep. 6)

  Guest Role
• 
  Lee Hyun

  [Festival food vendor] (Ep. 6)

  Guest Role
• 
  Yang Ha Yoon

  [Agent] (Ep. 6)

  Guest Role
• 
  Jang Dae Woong

  Kim Sang Su

  Guest Role
• 
  Joo Suk Je

  Jung Ji Hoon

  Guest Role
• 
  Seo Myung Chan

  Jin Yong Kwan

  Guest Role
• 
  Moon Jung Dae

  Kang Seok Gwan [Chief]

  Guest Role
• 
  Lee Se Ho

  [Agent]

  Guest Role
• 
  Jeon Hui Jeong

  [Agent]

  Guest Role
• 
  Park Chan Woo

  [Soldier]

  Guest Role
• 
  Lee Seung Chul

  [Parasite]

  Guest Role
• 
  Kwak Min Ho

  [Detective]

  Guest Role
• 
  Shin Dong Ryuk

  [Suit parasite]

  Guest Role
• 
  Oh Chi Woon

  [Flying parasite]

  Guest Role
• 
  Kim Se Yun

  [Detective]

  Guest Role