My Roommate Is a Gumiho

Director

• 
  Nam Sung Woo

Screenwriter

• 
  Baek Sun Woo
• 
  Choi Bo Rim

Main Role

• 
  Jang Ki Yong

  Shin Woo Yeo

  Main Role
• 
  Lee Hye Ri

  Lee Dam

  Main Role
• 
  Kang Han Na

  Yang Hye Sun

  Main Role
• 
  Kim Do Wan

  Do Jae Jin

  Main Role
• 
  Bae In Hyuk

  Gye Sun Woo

  Main Role

Support Role

• 
  Park Kyung Hye

  Choi Soo Kyung

  Support Role
• 
  Choi Woo Sung

  Lee Dan [Lee Dam's brother]

  Support Role
• 
  Kim Do Yeon

  Gye Seo Woo [Sun Woo's sister]

  Support Role
• 
  Kim Kang Min

  Jung Suk

  Support Role
• 
  Bang Eun Jung

  Jeon Da Young

  Support Role
• 
  Kang Min Ji

  Seo Jin

  Support Role
• 
  Park Won Ho

  Kim Moo Geun

  Support Role
• 
  Kim Hyun Chi

  Tae Jin

  Support Role
• 
  Lee Pung Woon

  Bin Dae Hun [Seogwa University]

  Support Role

Guest Role

• 
  Kim Hwan

  [Nightclub guy] (Ep. 1)

  Guest Role
• 
  Shin Ye On

  [Gisaeng] (Ep. 1)

  Guest Role
• 
  Han Ji Yoon

  [Gisaeng] (Ep. 1)

  Guest Role
• 
  Oh Ki Hwan

  [Detective] (Ep. 1)

  Guest Role
• 
  Kim Hyun Mok

  [Bus passenger] (Ep. 1, 10)

  Guest Role
• 
  Yoo Il Han

  [Guy at the nightclub] (Ep. 1)

  Guest Role
• 
  Lee Dong Yong

  [Hardware shop owner] (Ep. 1)

  Guest Role
• 
  Kim Eung Soo

  [Woo Yeo's transformation] (Ep. 1)

  Guest Role
• 
  Han Ji Eun

  Hwang Yoo Jin [Publishing company team leader] (Ep. 1, 5-7)

  Guest Role
• 
  Lee Jin Ri

  Kim Ri Ra (Ep. 1, 7)

  Guest Role
• 
  Lee Se Hee

  [Gisaeng] (Ep. 1, 10)

  Guest Role
• 
  Lee Yoon Sang

  [News program man] (Ep. 2)

  Guest Role
• 
  Shin Hyun Jin

  [Sun Woo's ex-girlfriend] (Ep. 2)

  Guest Role
• 
  Min Dae Shik

  [Seogwa University professor] (Ep. 4)

  Guest Role
• 
  Jo Ah Jin

  Lee Min Ju (Ep. 4, 7)

  Guest Role
• 
  Jung So Min

  [Woo Yeo's first love] (Ep. 5-7)

  Guest Role
• 
  Jang Sung Kyu

  Park Jae Hyun [Lee Dam's blind date] (Ep. 6)

  Guest Role
• 
  Oh Hyun Kyung

  [Lee Dam's mother] (Ep. 6)

  Guest Role
• 
  Na Seok Min

  [Detective] (Ep. 7)

  Guest Role
• 
  Park Sang Yong

  [Professor] (Ep. 7)

  Guest Role
• 
  Go Kyung Pyo

  [Mountain spirit] (Ep. 7, 10-14)

  Guest Role
• 
  Kang Mi Na

  Choi Jin Ah [Jae Jin's ex-girlfriend] (Ep. 8, 11)

  Guest Role
• 
  Park Jin Young

  [Teaching assistant] (Ep. 9)

  Guest Role
• 
  Lee Kyu Sung

  [Mountain spirit transformation] (Ep. 9-10)

  Guest Role
• 
  Jung Ye Nok

  [Girl at fortune telling booth] (Ep. 10)

  Guest Role
• 
  Heo Soo Bin

  [Seogwa University student] (Ep. 10)

  Guest Role
• 
  Park Jung Woo

  [Sun Woo's father] (Ep. 11, 14)

  Guest Role
• 
  Shim Hyung Tak

  [Sun Woo's uncle] (Ep. 11-12)

  Guest Role
• 
  Son Sung Yoon

  Seo Young Joo [Professor] (Ep. 9, 11-14)

  Guest Role
• 
  Ha Min

  [Gye Sun Woo's mother] (Ep. 14)

  Guest Role
• 
  Lee Joon Hyuk

  Park Bo Gum [Professor / Woo Yeo's transformation] (Ep. 14)

  Guest Role
• 
  Park Eun Young

  [Street vendor] (Ep. 15)

  Guest Role
• 
  Lee Dong Young

  [Teaching assistant] (Ep. 15)

  Guest Role
• 
  Oh Jung Se

  [Jae Jin's older brother] (Ep. 15)

  Guest Role
• 
  Cha Sang Mi

  [Restaurant employee] (Ep. 16)

  Guest Role
• 
  Lee Joon Young

  [Purse snatcher] (Ep. 16)

  Guest Role
• 
  Park Sung Min

  [Purse snatcher] (Ep. 16)

  Guest Role
• 
  Lee Joo Ha

  Young Ok

  Guest Role
• 
  Shin Yeon Soo

  [Female university student]

  Guest Role
• 
  Lee Jin Hong

  [Frightened passerby] (Ep. 5)

  Guest Role
• 
  Lee Jeong Chan

  [Dan's friend] (Ep. 3)

  Guest Role
• 
  Son Da Yeon

  (Ep. 10)

  Guest Role

Unknown

• 
  Seo Jung Bin Unknown