My Dearest Nemesis

Director

• 
  Lee Soo Hyun

Main Role

• 
  Mun Ka Young

  Baek Su Jeong

  Main Role
• 
  Choi Hyun Wook

  Ban Ju Yeon

  Main Role
• 
  Im Se Mi

  Seo Ha Jin

  Main Role
• 
  Kwak Shi Yang

  Kim Sin Won

  Main Role

Support Role

• 
  Ban Hyo Jung

  Jung Hyo Seon [Ju Yeon's grandmother]

  Support Role
• 
  Kim Young Ah

  Kwon In Gyeong [Ju Yeon’s secretary]

  Support Role
• 
  Kim Woo Kyum

  Yang Jun Su [Yongsung Department Store planning team member]

  Support Role
• 
  Lim Young Ju

  Choi Na Na [Yongsung Department Store planning team member]

  Support Role
• 
  Seong Seung Ha

  Kim Seok Hui [Yongsung Department Store planning team member]

  Support Role
• 
  Yoon Young Min

  Hye Ju [Yongsung employee] (Ep. 2, 4-6, 8-10, 12)

  Support Role
• 
  Moon Woo Jin

  Ban Ju Yeon [Teen]

  Support Role
• 
  Ko Chang Seok

  Baek Won Seop [Su Jeong's father]

  Support Role
• 
  Son Sang Yeon

  Baek Su Bin [Su Jeong's brother]

  Support Role

Guest Role

• 
  Choi Geon

  “Bean Bug” (Ep. 1)

  Guest Role
• 
  Oh Eui Shik

  "TVXQ-tip" (Ep. 1)

  Guest Role
• 
  Kim Hee Chang

  Director Choi (Ep. 1)

  Guest Role
• 
  Yang Joon Seok

  Baek Su Bin [Teen] (Ep. 1)

  Guest Role
• 
  Lee Dong Geun

  [Manager] (Ep. 1)

  Guest Role
• 
  Park Yun Ho

  [Manager] (Ep. 1)

  Guest Role
• 
  Kim Sun Hyuk

  [Manager] (Ep. 1)

  Guest Role
• 
  WillyK

  [Rock band member] (Ep. 1-2, 6, 12)

  Guest Role
• 
  Denny Lee

  [Rock band member] (Ep. 1-2, 6, 12)

  Guest Role
• 
  Cyan

  [Rock band member] (Ep. 1-2, 6, 12)

  Guest Role
• 
  Vincent

  [Rock band vocalist] (Ep. 1-3, 6, 12)

  Guest Role
• 
  Park Jin U

  [Toy boy] (Ep. 2)

  Guest Role
• 
  Lee Rang Seo

  [Waitress] (Ep. 2)

  Guest Role
• 
  Lee Ha Joo

  [Party woman] (Ep. 2)

  Guest Role
• 
  Yoon Jun Won

  [Chaebol man provoking Ju Yeon] (Ep. 2)

  Guest Role
• 
  Kim Seung Ho

  Seo Gang Min [Chaebol] (Ep. 2-3, 6)

  Guest Role
• 
  Pyo Young Seo

  Eun Hui [Sin Won’s girlfriend] (Ep. 2, 6)

  Guest Role
• 
  Kim Bong Jo

  [Delivery man] (Ep. 3)

  Guest Role
• 
  Kim Tae Hoon

  [Ju Yeon's father] (Ep. 3-4)

  Guest Role
• 
  Woo Hee Jin

  [Ju Yeon’s mother] (Ep. 3-4)

  Guest Role
• 
  Kim Hak Seon

  [Ha Jin’s dad] (Ep. 3, 6-7, 10)

  Guest Role
• 
  Yoon Bok In

  [Ha Jin’s mom] (Ep. 3, 6-7, 10)

  Guest Role
• 
  Kim Mi Ran

  Deputy Yun (Ep. 4)

  Guest Role
• 
  Gu Hyun

  Ban Ju Yeon [Child] (Ep. 4)

  Guest Role
• 
  Jang Jae Kwon

  [Doctor] (Ep. 4)

  Guest Role
• 
  Kim Kwon

  [Boy’s dad] (Ep. 4)

  Guest Role
• 
  Jo Seung Yun

  [Sin Won’s dad] (Ep. 4)

  Guest Role
• 
  Jo Hyun Sik

  [Sin Won’s friend] (Ep. 4)

  Guest Role
• 
  Hwang Yu Na

  Baek Su Jeong [Young] (Ep. 4, 9)

  Guest Role
• 
  Lee Ji Hyun

  [Sin Won’s mom] (Ep. 4, 10)

  Guest Role
• 
  Park Jeong Ja

  An Jae Suk [Ganghan Farm CEO] (Ep. 5-6)

  Guest Role
• 
  Hong Jong Hyun

  Yun Ji U [Su Jeong’s blind date] (Ep. 6-7)

  Guest Role
• 
  Kim Sang Il

  [Gang Min’s dad] (Ep. 6)

  Guest Role
• 
  Kim Min Suk

  [Security guard] (Ep. 7)

  Guest Role
• 
  Yoon Park

  Lee Hyeong Geun [Customer] (Ep. 8)

  Guest Role
• 
  Lee Ho Jin

  [Ha Jin’s friend] (Ep. 8)

  Guest Role
• 
  Bae So Eun

  [Ha Jin’s friend] (Ep. 8)

  Guest Role
• 
  Park Ji Ho

  [Sin Won’s friend] (Ep. 8)

  Guest Role
• 
  Cha Young Nam

  [Sin Won’s friend] (Ep. 8)

  Guest Role
• 
  Jang Seo Yi

  [Arteta Asia CEO] (Ep. 8)

  Guest Role
• 
  Kim So Min

  Yong Jun (Ep. 9)

  Guest Role
• 
  Park Soo Min

  [Teacher] (Ep. 9)

  Guest Role
• 
  Shin Hyun Soo

  [Ex-husband] (Ep. 10)

  Guest Role
• 
  Lee Moo Nyoung

  [Maintenance worker] (Ep. 10)

  Guest Role
• 
  Kim Yong Jin

  [Maintenance worker] (Ep. 10)

  Guest Role
• 
  Lee Eun Joo

  Kim Mi Jeong (Ep. 11)

  Guest Role
• 
  Son Joo Yeon

  [Dentist] (Ep. 11)

  Guest Role
• 
  Cha Yong Hwan

  [Reporter] (Ep. 11)

  Guest Role
• 
  Shin Hee Gook

  [Reporter] (Ep. 11)

  Guest Role
• 
  Lee Chang Won

  [Employee] (Ep. 11)

  Guest Role
• 
  Park Bo Eun

  [Employee] (Ep. 11)

  Guest Role
• 
  Lin Da Jeon

  [Colleague] (Ep. 11)

  Guest Role
• 
  Park Sung Jin

  Deok Gu (Ep. 1)

  Guest Role