Please Don't Date Him

Director

• 
  Oh Mi Kyung

Main Role

• 
  Song Ha Yoon

  Seo Ji Sung

  Main Role
• 
  Lee Jun Young

  Jung Guk Hui

  Main Role
• 
  Yoon Bo Mi

  Moon Ye Seul

  Main Role
• 
  Gong Min Jung

  Tak Gi Hyun

  Main Role

Support Role

• 
  Joo Woo Jae

  Han Yoo Jin [President of Han & Bang Dental Clinic]

  Support Role
• 
  Nam Min Woo

  Ok Dong Jin [Pelican R&D team member/vlogger]

  Support Role
• 
  Kim Ki Ri

  Jegal Soo Won [Pelican R&D Manager]

  Support Role
• 
  Lee Si Hoon

  Bang Jung Han [Ji Sung's fiance]

  Support Role
• 
  Kim Kyung Il

  Kam O Jeong [Guk Hui's EMS partner]

  Support Role
• 
  Kim Tae Gyum

  Kim Sang Shik [Tak Gi Hyun's husband]

  Support Role
• 
  Hwang Young Hee

  Lee Eun Hwa [Seo Ji Sung's mother]

  Support Role
• 
  Park Han Sol

  Byun Ha Ri [Pelican R&D team member]

  Support Role
• 
  Kang Mal Geum

  Hwang Ga Eul [Pelican Senior Manager]

  Support Role
• 
  Jung Min Sung

  O Byeong Gil [Pelican R&D director]

  Support Role
• 
  Choi Baek Gu

  Kim Jin Soo

  Support Role
• 
  Shin Ji Yeon

  [Nurse]

  Support Role
• 
  Kim Hyun Myung

  Jo Yong Hwan

  Support Role
• 
  Kim Moon Chan

  Kim Moon Chan

  Support Role

Guest Role

• 
  Jung In Ki

  [Seo Ji Sung's father]

  Guest Role
• 
  Lee Ji Ha

  [Jung Han's Mother] (Ep. 2)

  Guest Role
• 
  Jung Hyung Don

  [Candid Interviewer] (Ep. 2)

  Guest Role
• 
  Yoo Jae Pil

  [Candid Interviewer] (Ep. 2)

  Guest Role
• 
  Ahn Il Kwon

  [Man threatening to jump out the window] (Ep. 3)

  Guest Role
• 
  Hong Yoon Hwa

  [Photographer] (Ep. 6, 9)

  Guest Role
• 
  Lee Jung Hyung

  Kang Hyun Soo (Ep. 7)

  Guest Role
• 
  Joey Albright

  James [Hostel Guest] (Ep. 9)

  Guest Role
• 
  Lee Jin Soo

  Yeon Ha Jun (Ep. 4-5)

  Guest Role
• 
  Yoon Don Sun

  Hwang Ki Cheon (Ep. 9)

  Guest Role
• 
  Kim Jae In

  [Sang Hoon's girlfriend] (Ep. 1)

  Guest Role
• 
  Park Sun Ah

  [Jung Jae Min's mother] (Ep. 9)

  Guest Role
• 
  Jang Joon Hyun

  [Detective] (Ep. 2, 10)

  Guest Role
• 
  Lee Mu Song

  [Yu Jin's father]

  Guest Role
• 
  Noh Sa Yeon

  [Yu Jin's mother]

  Guest Role
• 
  Ho Yoon

  [Jung Han's friend] (Ep. 1, 4)

  Guest Role
• 
  Shin Ji Yeon

  [Nurse]

  Guest Role
• 
  Byun Hong Jun

  [Bully student] (Ep. 5, 9)

  Guest Role
• 
  Kim Tae Bum

  Woo Ki Ja [Reporter] (Ep. 6)

  Guest Role
• 
  Richard Kim

  [ Station Team Leader] (Ep. 5)

  Guest Role
• 
  Hong Dal Pyo

  Kang Sang Jun (Ep. 6, 9)

  Guest Role
• 
  Jang Hae Min

  [Employee]

  Guest Role
• 
  Shin Soo Oh

  Jung Sang Hoon (Ep. 1)

  Guest Role
• 
  Kang Sung Chan

  Jung Jae Min [Teen] (Ep. 5, 9)

  Guest Role

Unknown

• 
  Son Joo Yeon Unknown
• 
  Park Tae Woo Unknown
• 
  Yoo Jin Seok Unknown

Bit part

• 
  Cho Hyun Min Bit part