• 
  Kim Sang Ho

  Oh Kwang Ho
• 
  Yoon Da Young

  Kim Kyung Mi
• 
  Moo-Seong Choi

  Yoon Seung-ro
• 
  Park Joo Hyung

  Park Joon Pyo
• 
  Bae Je Ki

  Choi Myung Hoon
• 
  Lee Ho Jae

  Kim Jae Man
• 
  Seungwook Kim

  Kyung Soo's father
• 
  Si-young Lee

  Jo Soo-ji

• 
  Key

  Gong Kyung-soo
• 
  Tae-hoon Kim

  Kim Eun-jung
• 
  So Hee Jung

  Kyung Soo's mother
• 
  Young-kwang Kim

  Jang Do-han
• 
  Kim Seul-gi

  Seo Bo-mi
• 
  Seo Jae Hyung

  Ma Jin Ki
• 
  Kim Sun-Young

  Lee Soon Ae (as Kim Sun Young)

• 
  Kim Jung Young

  Soo Ji's mother
• 
  Jeong-yeong Kim

  Soo Ji's mother (as Jung-Young Kim)
• 
  Song Sun Mi

  Chae Hye Sun
• 
  Lee Ji Won

  Jin Se Won
• 
  Joo-hyung Park

  Park Joon Pyo
• 
  Park Solomon

  Yoon Si Wan