| Full Name | Kayan Yau |
| Date of Birth | 20 January, 2000 |
| Place of Birth | Hong Kong |
| Origin | Hong Kong |
| Ethnicity | Han Chinese |
| Occupation | Actress, TV Host |
| Other Names | Yau Ka-Yan, You Jiaxin, You Jia-Xin |
| Alma Mater | City University of Hong Kong, Hong Kong |
| Company | TVB |
| Debut Date | 2018 |