• 
  Kyeong-min Hong

  14 episodes, 2012
• 
  Hyo-ju Park

   Han Jeong Eun (1 episode, 2012)
• 
  Se-chang Maeng

   Jang Tae Kwon (1 episode, 2012)
• 
  Kim Eunjung

   Oh In-Young (1 episode, 2012)
• 
  Yoon-woo Jo

   Han Dong Woo (1 episode, 2012)
• 
  Park Yoo Hwan

   Kang Woo Hyun (1 episode, 2012)
• 
  Go Eun Ah

   Ji Seung Yeon (1 episode, 2012)
• 
  Kwak Yong Hwan

   Kwon Ji Woo (1 episode, 2012)

• 
  Song Se Hyun

   Kim Hyun Seung (1 episode, 2012)
• 
  Jin Hyuk

   Yoon Jae Ah (1 episode, 2012)
• 
  Hong Kyung Min

   Jang Hyun Suk (1 episode, 2012)
• 
  Yeong-ok Kim

   Kim Bok Soon (5 episodes, 2012)
• 
  Tagoon

   Park Ki Bum (13 episodes, 2012)
• 
  Kevin

   Kang Chang Min (13 episodes, 2012)
• 
  Sang-Joon Lee

   Jang Seok (4 episodes, 2012)

• 
  Ali

   Teacher Park (9 episodes, 2012)
• 
  Seo-Kyung Shin

   Lee Soon-Yeon (3 episodes, 2012)
• 
  Dong-Seok Kim

   Director Lee's Assistant (4 episodes, 2012)
• 
  Mi Yun Kan

   Kang Hae Young (5 episodes, 2012)