Happy Happy (2025) featured a cast of 5 tracked actors. Of these, 5 (100%) are still alive today. The oldest surviving cast member is Niu Zemeng, age 30. This TV series starred Jing Yanjun and Kou Weilong.
100% still with us· verified cast
Survivorship
Cast Reunion Index: 100% still living
Cast5 members
| Person | Character | Status | DOB | Age | DOD | Age in 2025 |
|---|---|---|---|---|---|---|
 Jing Yanjun Sheng Kai Xin | Sheng Kai Xin | Living | 05/11/1996 | 29 | — | 29 |
 Kou Weilong Gu Yi Sen / Sen Ho | Gu Yi Sen / Sen Ho | Living | 02/05/2000 | 26 | — | 25 |
 Niu Zemeng Mo Ning | Mo Ning | Living | 27/01/1996 | 30 | — | 29 |
| Living | 24/05/1998 | 28 | — | 27 | ||
| Living | 13/01/2000 | 26 | — | 25 |
