- ‘The Master’s Sun’ is the first horror romantic comedy in Korea, and is written by the Hong Sisters, who wrote several popular dramas such as ‘You’re Beautiful’ and ‘My Girlfriend is a Nine-Tailed Fox’.
- Infinite’s L will be appearing as young Joo Joong Won.
- Hyo Rin from SISTAR sings for the drama’s OST.
- Minah from Girls’ Day will be having a cameo appearance in the drama.
- Seo In Guk went on a diet and exercise regime to tone up his body in preparation for his role.