Chae Seo-jin
actress
- Gender: Female
- Birthday: 1994-04-30 ( 30 years old )
- Place of Birth: Suncheon, South Jeolla Province, South Korea
- Also Known As: 채서진 / 김고운 / Kim Ko-woon / 蔡舒辰
- IMDB:nm7947861
Chae Seo-jin (born Kim Ko-woon on April 30, 1994) is a South Korean actress. She is known to be Kim Ok-vin’s sister.