Series Cast 11

1. 

   Lee Yu-ri

   Chae-ri (40 Episodes)

2. 

   Gong Yoo

   Joon (40 Episodes)

3. 

   Shoo

   Soo-young (40 Episodes)

4. 

   Jung Sung-yoon

   Tae-hyun (40 Episodes)

5. 

   Moon Ji-yoon

   Sang-hyuk (40 Episodes)

6. 

   Lim Seong-eon

   Min-hee (40 Episodes)

7. 

   Jo Dal-hwan

   Seok-goo (40 Episodes)

8. 

   Kim Yong-geon

   Sang-hyuk's Father (40 Episodes)

9. 

   Lee Mi-young

   Sang-hyuk's Mother (40 Episodes)

10. 

    Kim Ji-woo

    Song-yi (40 Episodes)

11. 

    Yoo Seo-jin

    Professor (40 Episodes)

Series Crew 4