• 
  Dong-geon Lee

   Han Yeol
• 
  Yu-ri Lee

   Cha Mi-rae
• 
  Lee Re

   Cha Sa-rang
• 
  Mi-kyung Kim

   Hwang Ji-woo
• 
  Han-wi Lee

   Choi Nak-kwon
• 
  Hye-na Kim

   Min Mang-hae
• 
  Nam-Gil Kang

   Han Man-ho
• 
  Jun-Yeong Seo

   Dr. Shin Woo-hyuk

• 
  Byoung-Sook Sung

   Han Yeol's Mother
• 
  Min-seong Choi

   Ryu Hyun-woo (as Min Choi)
• 
  Gwang Jang

   Coach Bang
• 
  Choi Dae Chul

   Sik Sang-hae
• 
  Joo-hyung Park

   Uhm Ki-tae
• 
  Ye Ji Seo

   Hwang Ji-hye
• 
  Kwon-soo Choi

   Lee Min-woo

• 
  Min Choi

  Ryu Hyun-woo
• 
  Nam-kil Kang

  Han Man-ho