Crushology 101

Director

• 
  Kim Ji Hoon

Screenwriter

• 
  Lee Seul
• 
  Sung So Eun

Main Role

• 
  Roh Jeong Eui

  Ban Hui Jin / "Bunny"

  Main Role
• 
  Lee Chae Min

  Hwang Jae Yeol

  Main Role
• 
  Cho Jun Young

  Cha Ji Won

  Main Role
• 
  Hong Min Gi

  Jin Hyeon O

  Main Role
• 
  Kim Hyun Jin

  Cho A Rang

  Main Role

Support Role

• 
  Choi Ji Su

  Nam Kkot Nim [Bunny's best friend]

  Support Role
• 
  Kim Min Chul

  Dong Ha [Jae Yeol's best friend]

  Support Role
• 
  Jeon Jun Ho

  Chun Chun Sik [Visual design student]

  Support Role
• 
  Lee Ji Hoon

  Ban Yeong Min [Bunny's father]

  Support Role
• 
  Kim Jae Hwa

  Kim Hyeon Gyeong [Bunny's mother]

  Support Role
• 
  Nam Kyu Hee

  Kwon Bo Bae [Bunny's childhood friend]

  Support Role
• 
  Wang Bit Na

  Lim Gyeong Hwa [Jae Yeol's mother]

  Support Role
• 
  Jeon So Young

  Han Yeo Reum [Jae Yeol's ex-girlfriend]

  Support Role
• 
  Chae Jenny

  Cha Hye Won [Ji Won's younger sister]

  Support Role
• 
  Kim Hyun Mok

  Ko Bong Su [Bunny's ex-boyfriend]

  Support Role
• 
  Jo Hyun Ah

  Park Hye Yeong [Professor of Sculpture]

  Support Role
• 
  Jung Ye Nok

  Jung Min Ju [Sculpting student]

  Support Role
• 
  Jin Se Rim

  Min Ji Yeong [Western painting student]

  Support Role
• 
  Kim Ju Mi

  O Yu Ri [Sculpting student]

  Support Role

Guest Role

• 
  Kim Si On

  Ban Hui Jin [Child] (Ep. 1)

  Guest Role
• 
  Jung Ji Woo

  [Staff] (Ep. 1)

  Guest Role
• 
  Choi Bo Min

  [Student] (Ep. 1)

  Guest Role
• 
  Lee Jin Woo

  [High school art teacher] (Ep. 1)

  Guest Role
• 
  Jin Ye Sol

  (Ep. 1)

  Guest Role
• 
  Kim Ha Neul

  (Ep. 1)

  Guest Role
• 
  Chae Jung An

  (Ep. 1)

  Guest Role
• 
  Kim Hyun Joo

  (Ep. 1)

  Guest Role
• 
  Jo Young Mi

  [Landlady] (Ep. 2)

  Guest Role
• 
  Hong Seok Cheon

  [Camera shop customer] (Ep. 3)

  Guest Role
• 
  Jang Eui Soo

  [Gyeong Hwa’s boyfriend] (Ep.3)

  Guest Role
• 
  Yeom Ji Hye

  [Anchorwoman] (Ep. 4)

  Guest Role
• 
  Kim Hwi Gyu

  [Library student] (Ep. 5)

  Guest Role
• 
  Lee Seung Hyung

  [Director] (Ep. 6)

  Guest Role
• 
  Park Jung Eon

  [Professor] (Ep. 6)

  Guest Role
• 
  Yu In

  [Filming staff] (Ep. 6)

  Guest Role
• 
  Lee Ga Kyung

  [Angry wife] (Ep. 7)

  Guest Role
• 
  Yun Tae Yi

  [Staff] (Ep. 8)

  Guest Role
• 
  Ko Do Eun

  [Waitress] (Ep. 8)

  Guest Role
• 
  Kim Geum Soon

  [Yeo Reum’s mom] (Ep. 8)

  Guest Role
• 
  Lee Se In

  [Police officer] (Ep. 9)

  Guest Role
• 
  Shin Young Kyu

  [Bong Su’s friend] (Ep. 9)

  Guest Role
• 
  Moon Ki Young

  [Doctor] (Ep. 10)

  Guest Role
• 
  Jo Jae Kyung

  [Movie club staff] (Ep. 10)

  Guest Role
• 
  Ha Min

  [Arte Foundation staff] (Ep. 10)

  Guest Role
• 
  Ahn Sang Jin

  Bong Su [Senior]

  Guest Role