What's Up? (2011) featured a cast of 11 tracked actors. Of these, 11 (100%) are still alive today. The oldest surviving cast member is Song Ok-suk, age 66. This TV series starred Lim Ju-hwan and Oh Man-seok.
100% still with us· verified cast
Survivorship
Cast Reunion Index: 100% still living
Cast11 members
| Person | Character | Status | DOB | Age | DOD | Age in 2011 |
|---|---|---|---|---|---|---|
 Lim Ju-hwan Jang Jae-Hun | Jang Jae-Hun | Living | 18/05/1982 | 44 | — | 29 |
 Oh Man-seok Sun Woo-Yeong | Sun Woo-Yeong | Living | 30/01/1975 | 51 | — | 36 |
 Kim Ji-won Park Tae-Yi | Park Tae-Yi | Living | 19/10/1992 | 33 | — | 19 |
 Im Joo-eun Oh Doo-Ri | Oh Doo-Ri | Living | 07/01/1988 | 38 | — | 23 |
 Cho Jung-seok Kim Byung-Gun | Kim Byung-Gun | Living | 26/12/1980 | 45 | — | 31 |
 DAESUNG Ha Do-Sung | Ha Do-Sung | Living | 26/04/1989 | 37 | — | 22 |
 Jang Hee-jin Eun Chae-young | Eun Chae-young | Living | 03/05/1983 | 43 | — | 28 |
 Lee Soo-hyuk Lee Soo-bin | Lee Soo-bin | Living | 31/05/1988 | 38 | — | 23 |
 An Seo-hyun Oh Doo-ri (young) | Oh Doo-ri (young) | Living | 12/01/2004 | 22 | — | 7 |
 Song Ok-suk Jang Jae-heon's mother | Jang Jae-heon's mother | Living | 14/08/1960 | 66 | — | 51 |
 Kim Mi-kyeong Professor Yang Soo-jung | Professor Yang Soo-jung | Living | 14/10/1963 | 62 | — | 48 |