Series Cast 15

1. 

   Jung In-sun

   In Yoon-joo / Kang Sun-Ju (12 Episodes)

2. 

   Lee Jun-young

   Yoon Tae-in (12 Episodes)

3. 

   Jang Dong-ju

   Seo Woo-yeon (12 Episodes)

4. 

   JR

   Lee Shin (12 Episodes)

5. 

   Yoon Ji-sung

   Kim Yoo-chan (12 Episodes)

6. 

   Kim Dong-hyun

   Ga-on (12 Episodes)

7. 

   Seo Hye-won

   Jung Ba-Reun (12 Episodes)

8. 

   Ha Yeong

   Chae Ji-Yeon (12 Episodes)

9. 

   Gwag Ja-hyeong

   CEO Moon (12 Episodes)

10. 

    Lee Se-chang

    CEO Jang (12 Episodes)

11. 

    Park Ji-won

    Hyo-bin (12 Episodes)

12. 

    Seo Yi-soo

    In Yoon Jo | In Sun Joo [Child] (Ep. 1, 9, 11) (12 Episodes)

13. 

    Jo Eun-seo

    [Teen who Catches a Falling Woo Ga-on] (12 Episodes)

14. 

    Kang Ji-young

    Nina (1 Episode)

15. Kim Tae-woo

    Bully (1 Episode)

Series Crew 4