| Full Name | Chen Siqi |
| Pinyin | Chén Sī Qí |
| Date of Birth | 18 August, 1995 |
| Place of Birth | Hefei, Anhui, China |
| Origin | China |
| Ethnicity | Han Chinese |
| Height | 5' 10" (178 cm) |
| Occupation | Actor, Singer |
| Other Names | Chen Si-Qi |
| Related Group | COSMOS |
| Alma Mater | Communication University of Zhejiang, Hangzhou, Zhejiang, China |
| Debut Date | 2014 |