• 
  Byeong-ok Kim

   Chairman Lee (2018)
• 
  Hye-ok Kim

   Madame Choi (2018)
• 
  Bo-ra Hwang

   Bong Se-ra (2018)
• 
  Min-Young Park

   Kim Mi-so
• 
  Chan-sung Hwang

   Go Gwi-nam (2018)
• 
  Park Seo-joon

   Lee Young-joon
• 
  Tae-Hwan Lee

   Lee Sung-yeon (2018)
• 
  Ki-Young Kang

   Park Yoo-sik (2018)

• 
  Ye-jin Pyo

   Kim Ji-ah (2018)
• 
  Yoo Joon Lee

   Jung Chi-in (2018)
• 
  Kim Ye Won

  16 episodes, 2018
• 
  Jeong-wun Kim

  11 episodes, 2018
• 
  Hong-Seok Kang

  9 episodes, 2018
• 
  Minyoung Park

  Kim Mi-so
• 
  Kim Ye-Won

  16 episodes, 2018

• 
  Moon Woo-Jin

   Lee Young Joon (Young)
• 
  Ji Yoon Hong

  Oh Ji Ran
• 
  Hyo-rim Seo

  Choi Seo-jin
• 
  Sung Yoon Son

  Kidnapper
• 
  Soo-kyung Lee

  Madame Choi (young)