Introverted Boss

Composer

• 
  Eom Ki Yeop

Director

• 
  Song Hyun Wook

Screenwriter

• 
  Joo Hwa Mi

Main Role

• 
  Yeon Woo Jin

  Eun Hwan Gi

  Main Role
• 
  Park Hye Soo

  Chae Ro Woon

  Main Role
• 
  Gong Seung Yeon

  Eun Yi Soo

  Main Role
• 
  Yoon Park

  Kang Woo Il

  Main Role

Support Role

• 
  Ye Ji Won

  Dang Yoo Hee

  Support Role
• 
  Jeon Hyo Sung

  Kim Gyo Ri

  Support Role
• 
  Lee Kyu Han

  Reporter Woo

  Support Role
• 
  Kim Eung Soo

  Eun Bok Dong [Hwan Ki and Yi Soo's father]

  Support Role
• 
  Kim Ye Ryung

  Park Ae Ran [Hwan Ki & Yi Soo's mother]

  Support Role
• 
  Lee Han Wi

  Chae Won Sang [Ro Un's father]

  Support Role
• 
  Han Chae Ah

  Chae Ji Hye [Ro Woon's older sister]

  Support Role
• 
  Heo Jung Min

  Uhm Sun Bong

  Support Role
• 
  Stephanie

  Park Boo Gyung [Director]

  Support Role
• 
  Jang Hee Jin

  Seo Yun Jung [Hwan Ki's first love]

  Support Role
• 
  Jung Yi Yeon

  Assistant Manager Jung

  Support Role
• 
  Hwang So Hee

  Assistant Manager Lee

  Support Role
• 
  Han Jae Seok

  Jang Se Jong

  Support Role
• 
  Seo Eun Sol

  Eun Yi Soo [Young]

  Support Role
• 
  Woo Hyun

  [Ro Woon's neighbor]

  Support Role
• 
  Song Young Jae

  [Ro Woon's neighbor]

  Support Role
• 
  Yoo Gun Woo

  [Eun Bok Dong's secretary](Ep.15)

  Support Role
• 
  Seo In Sung

  Baek Yi Ho

  Support Role
• 
  Han Eun Seong

  Jang Se Jong

  Support Role

Guest Role

• 
  XIA

  [Himself] (Ep. 1)

  Guest Role
• 
  Ji Dae Han

  [Advertiser] (Ep.1)

  Guest Role
• 
  Choi Byung Mo

  (Ep.1)

  Guest Role
• 
  Kim Hye Eun

  [Hwan Ki's psychiatrist] (Ep. 1-2, 7)

  Guest Role
• 
  Kang Nam Gil

  [Brain Security] (Ep. 1-2)

  Guest Role
• 
  Jung Dong Gyu

  [Investor in Brain](Ep.1)

  Guest Role
• 
  Jo Hyun Sik

  [Man at the men's restroom](Ep.2)

  Guest Role
• 
  Kim Ki Doo

  [Man at the men's restroom] (Ep. 2)

  Guest Role
• 
  Choi Hyuk

  [Man at the men's restroom](Ep.2)

  Guest Role
• 
  Heo Young Ji

  [Young Gyu's transgender daughter] (Ep. 3)

  Guest Role
• 
  Park Young Gyu

  Hwang Yeong Kyu [Actor](Ep.3)

  Guest Role
• 
  Kim Dae Hee

  [Yeong Kyu's manager](Ep.3)

  Guest Role
• 
  Choi Dae Chul

  [Restaurant management] (Ep .4)

  Guest Role
• 
  Park Sang Myun

  Master Jin (Ep.4)

  Guest Role
• 
  Lee Byung Joon

  (Ep. 7)

  Guest Role
• 
  Sung Byung Sook

  [Orphanage director] (Ep. 7-8)

  Guest Role
• 
  Kim Ji Suk

  [Yu He's husband] (Ep. 12)

  Guest Role
• 
  Park Joo Hyung

  [Jewelry artist] (Ep. 13)

  Guest Role
• 
  Lee Tae Woo

  Kang Woo Il [Young]

  Guest Role
• 
  Kim Mi Kyung

  [Ro Un's mother]

  Guest Role
• 
  Kim Byung Man

  [Bok Dong's friend]

  Guest Role
• 
  Ha Shi Eun

  [Interviewee at the hair salon](Ep.15)

  Guest Role
• 
  Geum Bo

  [Otaku]

  Guest Role
• 
  Go Jae Won Guest Role
• 
  Yoo Hyun Joo Guest Role
• 
  Geum Kwang San Guest Role
• 
  Lee Jung Sung Guest Role
• 
  Lee Kyung Hoon Guest Role
• 
  Ha Roo Bi

  [Ro Ha in front of barbershop]

  Guest Role
• 
  Eom Ji Man Guest Role
• 
  Jung Ji Hoon

  [Older brother]

  Guest Role

Unknown

• 
  Kim Wan Kyu Unknown
• 
  Chu Yeon Gyu Unknown
• 
  Kim In Cheol Unknown
• 
  Shin Tae Yang Unknown

Bit part

• 
  Park Seung Joon

  [kid in picture]

  Bit part
• 
  Kim Moon Hak Bit part