ON and OFF (2020) featured a cast of 11 tracked actors. Of these, 11 (100%) are still alive today. The oldest surviving cast member is Uhm Jung-hwa, age 57. This TV series starred Kim Min-ah and Sung Si-kyung.
100% still with us· verified cast
Survivorship
Cast Reunion Index: 100% still living
Cast11 members
| Person | Character | Status | DOB | Age | DOD | Age in 2020 |
|---|---|---|---|---|---|---|
 Kim Min-ah Self | Self | Living | 01/02/1991 | 35 | — | 29 |
 Sung Si-kyung Self | Self | Living | 17/04/1979 | 47 | — | 41 |
 Jo Se-ho Self | Self | Living | 09/08/1982 | 44 | — | 38 |
| Living | 17/08/1969 | 57 | — | 51 | ||
| Living | 06/03/1990 | 36 | — | 30 | ||
| Living | 18/11/1987 | 38 | — | 33 | ||
| Living | 24/03/1987 | 39 | — | 33 | ||
 Ahn Ji-young Himself | Himself | Living | 14/09/1995 | 31 | — | 25 |
 Chris Lyon Himself | Himself | Living | 01/01/1993 | 33 | — | 27 |
 Sim Eun-woo Himself | Himself | Living | 02/06/1992 | 34 | — | 28 |
 Yoon Shi-yoon Self | Self | Living | 26/09/1986 | 39 | — | 34 |
