Biography

Sung Yong-il (성용일) is a South Korean director.

Filmography

Production

View Duty After School

Duty After School

2023•Series•

8.2

View Class of Lies

Class of Lies

2019•Series•

7.6

View Dr. Frost

Dr. Frost

2014•Series•

5.7

View Fighter Choi Kang-soon

Fighter Choi Kang-soon

2018•Film•

3.0