What's Wrong with Secretary Kim

Cinematography

• 
  Park Seong Yong
• 
  Choi Byeong Hun

Composer

• 
  Mun Seong Nam

Director

• 
  Park Joon Hwa

Screenwriter

• 
  Baek Sun Woo
• 
  Choi Bo Rim
• 
  Jung Eun Yeong

Main Role

• 
  Park Min Young

  Kim Mi So

  Main Role
• 
  Park Seo Jun

  Lee Young Joon

  Main Role

Support Role

• 
  Lee Tae Hwan

  Lee Sung Yeon

  Support Role
• 
  Pyo Ye Jin

  Kim Ji Ah

  Support Role
• 
  Kim Hye Ok

  Mrs. Choi [Young Joon's mother]

  Support Role
• 
  Kim Byung Ok

  Chairman Lee [Young Joon's father]

  Support Role
• 
  Kang Ki Young

  Park Yoo Shik

  Support Role
• 
  Kang Hong Suk

  Yang Cheol [Young Joon's secretary]

  Support Role
• 
  Hwang Chan Sung

  Go Gwi Nam

  Support Role
• 
  Kim Ye Won

  Sul Ma Eum [Yoo Shik's secretary]

  Support Role
• 
  Lee Yu Jun

  Jung Chi In

  Support Role
• 
  Hwang Bo Ra

  Bong Se Ra

  Support Role
• 
  Baek Eun Hye

  Kim Pil Nam [Mi So's oldest sister]

  Support Role
• 
  Heo Soon Mi

  Kim Mal Hee [Mi So's second oldest sister]

  Support Role
• 
  Kim Jung Woon

  Park Jun Hwan

  Support Role
• 
  Lee Jung Min

  Lee Yeong Ok

  Support Role
• 
  Moon Woo Jin

  Lee Yeong Jun / Lee Seong Hyeon [Young]

  Support Role
• 
  Kim Ji Yoo

  Kim Mi So [Young]

  Support Role
• 
  Bae Gang Yoo

  Lee Sung Yeon [Young]

  Support Role

Guest Role

• 
  Choi Na Moo

  [Spanish Embassy party woman] (Ep. 1)

  Guest Role
• 
  Hong Ji Yoon

  O Ji Ran [Famous model] (Ep. 1, 3, 16)

  Guest Role
• 
  Park Byung Eun

  Park Byung Eun [Blind date man] (Ep. 3)

  Guest Role
• 
  Song Yi Jae

  [Woman receives hat from Seong Yeon] (Ep. 3)

  Guest Role
• 
  Lee Do Yeon

  [Journalist] (Ep. 4)

  Guest Role
• 
  Park Tae Yun

  [Claw machine schoolboy] (Ep. 6)

  Guest Role
• 
  Choi Hee

  [Book concert host] (Ep. 8)

  Guest Role
• 
  Go Se Won

  Chairman Lee [Young Joon's father - Young] (Ep. 8, 11, 12)

  Guest Role
• 
  Mikhal Ashminov

  [Himself] (Ep. 9)

  Guest Role
• 
  Jung Soo Young

  [Agency staff] (Ep. 9)

  Guest Role
• 
  Choi Hyun Woo

  [Himself] (Ep. 10)

  Guest Role
• 
  Lee Min Ki

  [Mi So's father] (Ep. 10)

  Guest Role
• 
  Jung So Min

  [Mi So's mother] (Ep. 10)

  Guest Role
• 
  Jung Shi Yool

  (Ep. 10)

  Guest Role
• 
  Son Sung Yoon

  [Kidnapper] (Ep. 11)

  Guest Role
• 
  Chae Yoo Ri

  [Child holding a doll outside Mi So's room] (Ep. 11)

  Guest Role
• 
  Lee Soo Kyung

  Mrs. Choi [Young Joon's mother - Young] (Ep. 11-12)

  Guest Role
• 
  Jung Myung Joon

  [Psychiatrist] (Ep. 12)

  Guest Role
• 
  Kil Hae Yeon

  [Reserved parking space woman] (Ep. 12)

  Guest Role
• 
  Bae Hyun Sung

  Bae Yun Sung [Intern] (Ep. 9, 13-16)

  Guest Role
• 
  Jo Duk Hyun

  Kim Young Man [Mi So's father] (Ep. 13-16)

  Guest Role
• 
  Jung Yu Mi

  Jung Yoo Mi [Young Joon's friend] (Ep. 14)

  Guest Role
• 
  Lee Se Young

  [Staff talked behind Kim Mi So's back] (Ep. 14)

  Guest Role
• 
  Kim Ka Yeon

  [Staff talked behind Kim Mi So's back] (Ep. 14)

  Guest Role
• 
  Lee Byung Joon

  Jang Jeong Do [Fashion designer] (Ep. 16)

  Guest Role
• 
  Kim Si Eun

  Kim Pil Nam [Child]

  Guest Role
• 
  Kang Ro Chae

  Eun Jung [Mi So's friend]

  Guest Role
• 
  Seo Hyo Rim

  Choi Seo Jin [Yoo Shik's ex wife]

  Guest Role
• 
  Lee Hyun Seo

  [Dish seller]

  Guest Role
• 
  Choi Yoon Woo

  [Playground boy]

  Guest Role
• 
  Lee Chang

  [Art center director]

  Guest Role
• 
  Park Jin Yeong

  [Household staff member] (Ep. 12)

  Guest Role

Unknown

• 
  Kim Jae Il Unknown
• 
  Kang Young Eun Unknown
• 
  Jo Mi Nyeo Unknown