• 
  Seong-Woong Park

   Yoo Jin-gook
• 
  Jung So Min

   Yoo Jin-kang
• 
  In Guk Seo

   Kim Moo-yeong
• 
  Eun-Su Seo

   Baek Seung-ah
• 
  Young-nam Jang

  16 episodes, 2018
• 
  Kwon Soo-Hyeon

  16 episodes, 2018
• 
  Sang-woo Do

  16 episodes, 2018
• 
  Hong-bin Lee

  16 episodes, 2018

• 
  Jae-Myeong Yoo

  16 episodes, 2018
• 
  Byung Mo Choi

  16 episodes, 2018
• 
  Min-Si Go

  16 episodes, 2018
• 
  Kim Ji-Hyeon

   Jang Se Ran
• 
  Go Min-Si

   Im Yoo Ri
• 
  Go Min-Si

  Im Yoo Ri
• 
  Da-Sol Han

  Shin Yoo Jin

• 
  Hae-Kyun Jung

  Jin Gook's past colleague
• 
  Uhm Seo-Hyun

  Im Yoo Ri (young)