| Full Name | Winwin Dong |
| Chinese Name | 董思成 |
| Pinyin | Dǒng Sī Chéng |
| Gender | Male |
| Date of Birth | 28 October 1997 |
| Place of Birth | Wenzhou, Zhejiang, China |
| Origin | China |
| Ethnicity | Han Chinese |
| Height | 5' 11" (180 cm) |
| Occupation | Actor, Singer |
| Other Names | Dong Si-Cheng |
| Alma Mater | Central Academy of Drama, Beijing, China |
| Debut Date | 2016 |