| Real Name | Shin Si-ah (신시아) |
| Nickname | Cynthia |
| Gender | Female |
| Profession | Actress, Model |
| Height | Not publicly disclosed |
| Weight | Not publicly disclosed |
| Eye Colour | Dark Brown |
| Hair Colour | Dark Brown |
| Date of Birth | |
| Birth Place | South Korea |
| Hometown | Seoul, South Korea |
| Nationality | South Korean |
| Zodiac Sign | Taurus |
| Education | Degree in Theater and Film |
| School / College | Hanyang University |
| Parents | Only child; parents not publicly disclosed |
| Spouse | None |
| Marital Status | Unmarried |
| Hobbies | Watching musicals, Acting |
| Net Worth | Estimated $1–2 million |
Jin Si-ah developed her passion for acting during high school after watching the musical Carmen. She immersed herself in theatre and pursued formal training at Hanyang...
She was selected for The Witch: Part 2 after a highly competitive audition process.
She watched up to four musicals per week during high school to...