Cold Blooded Intern

Director

• 
  Han Sang Jae

Screenwriter

• 
  Park Yeon Kyung

Main Role

• 
  Ra Mi Ran

  Ko Hae Ra

  Main Role
• 
  Uhm Ji Won

  Choi Ji Won

  Main Role

Support Role

• 
  Kim In Kwon

  So Je Seob [Hae Ra’s boss]

  Support Role
• 
  Lee Jong Hyuk

  Kong Su Pyo [Hae Ra's husband]

  Support Role
• 
  Kim Min Seo

  Kong I Yeong [Hae Ra’s daughter]

  Support Role
• 
  Kim Won Hae

  Ju Gwang Su [Market House chief director]

  Support Role
• 
  Kim Hye Hwa

  Geum So Jin [Assistant manager]

  Support Role
• 
  Kwon Hyuk

  Yeong Geum [Sales director]

  Support Role
• 
  Lee Chae Eun

  Lee Mun Jeong

  Support Role
• 
  Seo Ji Hoo

  Kang In Uk [Rookie]

  Support Role
• 
  Park Kyung Ri

  Park Seung Ju [Market House employee]

  Support Role
• 
  Lee Choong Joo

  Tae Seo Jun [Market House director]

  Support Role

Guest Role

• 
  Kim Sung Yong

  [Interviewer] (Ep. 1)

  Guest Role
• 
  Song Kyung A

  [Interviewer] (Ep. 1)

  Guest Role
• 
  Nam Dong Ha

  [Interviewer] (Ep. 1)

  Guest Role
• 
  Yoon Ji An

  Jung [SY Company assistant manager] (Ep. 2)

  Guest Role
• 
  Park Se Jun

  [Designer] (Ep. 2)

  Guest Role
• 
  Ahn Chan Woong

  [Paramedic] (Ep. 2)

  Guest Role
• 
  Lee Eun Chae

  [Interviewer] (Ep. 2)

  Guest Role
• 
  Ko Gyeong Man

  [SY Company employee] (Ep. 2)

  Guest Role
• 
  Lee Min Sik

  [SY Company employee] (Ep. 2)

  Guest Role
• 
  Kim Do Shin

  [JS Pharmaceuticals executive] (Ep. 2)

  Guest Role
• 
  Lee Ji Young

  [JS Pharmaceuticals employee] (Ep. 2)

  Guest Role
• 
  Moon Joo Won

  Jun [So Jin’s son] (Ep. 2-4, 6-7)

  Guest Role
• 
  Yoon Chae Eun

  Yun Yeon Seo [I Yeong's friend] (Ep. 2, 4, 6-7, 9-10)

  Guest Role
• 
  Kim Jung Hwan

  [SY Company team leader] (Ep. 2, 6)

  Guest Role
• 
  Kim Ji Hwan

  [Kid] (Ep. 3)

  Guest Role
• 
  Yoo Joon A

  [Kid's mother] (Ep. 3)

  Guest Role
• 
  Lee Hye Won

  [Job center staff] (Ep. 3)

  Guest Role
• 
  Choi Min Geum

  [Hae Ra's mother] (Ep. 4)

  Guest Role
• 
  Park Yoo Mil

  [Hae Ra's friend] (Ep. 4, 10)

  Guest Role
• 
  Sul Joo Mi

  [Hae Ra's friend] (Ep. 4, 10)

  Guest Role
• 
  Jung Yi Rang

  [Yeon Su's mother] (Ep. 4, 6, 10, 12)

  Guest Role
• 
  Ko Seo Jeong

  Ms. Kim [SY Company] (Ep. 5)

  Guest Role
• 
  Lee Dabitna

  [Hospital clerk] (Ep. 5)

  Guest Role
• 
  Park Cho A

  [Career counselor] (Ep. 5)

  Guest Role
• 
  Park Da On

  [Grocery store kid] (Ep. 5)

  Guest Role
• 
  Kim Hye Jung

  Kim Gyeong Ae [Ji Won’s mother] (Ep. 5-6, 10)

  Guest Role
• 
  Eun Ye Jun

  Han Do Yun [I Yeong's friend] (Ep. 5-7, 9-10)

  Guest Role
• 
  Park Jun Hyuk

  Kwon Jae I [I Yeong's friend] (Ep. 5-7, 9-10)

  Guest Role
• 
  Kang Sung Ho

  [Market House executive director] (Ep. 5-6, 8)

  Guest Role
• 
  Lee Moo Nyoung

  [Warehouse staff] (Ep. 6)

  Guest Role
• 
  Jang Eui Don

  [Market House executive] (Ep. 6)

  Guest Role
• 
  Jeon Soo Hwan

  Tae Jang Hwan [Market House Vice president] (Ep. 6, 8, 10-12)

  Guest Role
• 
  Jasper Cho

  [Choi Ji Won’s ex-boyfriend] (Ep. 6, 10)

  Guest Role
• 
  Jang Se Hyun

  Daniel [Chef] (Ep. 7)

  Guest Role
• 
  Choi Si A

  [Reporter] (Ep. 7)

  Guest Role
• 
  Kim Nam Ho

  [ER doctor] (Ep. 7)

  Guest Role
• 
  Moon Chang Jun

  [Chef Daniel’s restaurant waiter] (Ep. 7)

  Guest Role
• 
  Cha Yoo Joo

  [Market House employee] (Ep. 7-8)

  Guest Role
• 
  Kang Jung Hyuk

  [Shipowner] (Ep. 8)

  Guest Role
• 
  Kim Il Hyun

  [Surfing instructor] (Ep. 8)

  Guest Role
• 
  Yoon Gi Won

  Jung Sik (Ep. 8-9)

  Guest Role
• 
  Park Young Bok

  [Subcontractor CEO] (Ep. 9-10)

  Guest Role
• 
  Han Seo Hee

  Hui Yeol (Ep. 9, 12)

  Guest Role
• 
  Son Kyung Won

  [Market Clean Bio CEO] (Ep. 9, 11)

  Guest Role
• 
  Lee Eun Kang

  [CEO] (Ep. 10)

  Guest Role
• 
  Kim Mi Hye

  Kim [Hae Ra’s ex-colleague] (Ep. 10)

  Guest Role
• 
  Jang Yoon Woo

  [ER doctor] (Ep. 10-11)

  Guest Role
• 
  Park So Yoon

  [Hae Ra's neighbour] (Ep. 11)

  Guest Role
• 
  Kim Ha Jin

  An Seok Hui [Doctor] (Ep. 11-12)

  Guest Role
• 
  Kim Il Woo

  [Market House executive] (Ep. 11-12)

  Guest Role
• 
  So Yoo Jin

  No A Hyeon (Ep. 12)

  Guest Role
• 
  Jung Woong In

  Jung Tae Seong (Ep. 12)

  Guest Role
• 
  Kim Joon Hyung

  [Audit team] (Ep. 12)

  Guest Role
• 
  Bae Jung Hwa

  [So Jae Seob's wife] (Ep. 12)

  Guest Role
• 
  Kim Bong Su

  [Birthday party attendee] (Ep. 12)

  Guest Role
• 
  Lee Jong Woon

  [Birthday party attendee] (Ep. 12)

  Guest Role
• 
  Kang Seong Hwa

  [Market House employee] (Ep. 12)

  Guest Role

Unknown

• 
  Jo Eun Sol Unknown
• 
  Kim Yool Ho Unknown
• 
  Lee Yu Na Unknown