Happy Once Again (2016) featured a cast of 18 tracked actors. Of these, 18 (100%) are still alive today. The oldest surviving cast member is Conan O'Brien, age 63. This TV series starred Jang Na-ra and Jung Kyung-ho.
100% still with us· verified cast
Survivorship
Cast Reunion Index: 100% still living
Cast18 members
| Person | Character | Status | DOB | Age | DOD | Age in 2016 |
|---|---|---|---|---|---|---|
 Jang Na-ra Han Mi-Mo | Han Mi-Mo | Living | 18/03/1981 | 45 | — | 35 |
 Jung Kyung-ho Song Soo-Hyuk | Song Soo-Hyuk | Living | 31/08/1983 | 43 | — | 33 |
 Kwon Yul Goo Hae-joon | Goo Hae-joon | Living | 29/06/1982 | 44 | — | 34 |
 Yoo In-na Go Dong-Mi | Go Dong-Mi | Living | 05/06/1982 | 44 | — | 34 |
 Yoo Da-in Baek Da-Jung | Baek Da-Jung | Living | 09/02/1984 | 42 | — | 32 |
 Seo In-young Hong Ae-ran | Hong Ae-ran | Living | 03/09/1984 | 42 | — | 32 |
 Sandara Park Goo Seul-ah | Goo Seul-ah | Living | 12/11/1984 | 41 | — | 32 |
 Kim Tae-hun Kim Gun-hak | Kim Gun-hak | Living | 26/05/1975 | 51 | — | 41 |
 Hwang Sun-hee Woo Yeon-soo | Woo Yeon-soo | Living | 15/08/1986 | 40 | — | 30 |
 Park Eun-seok Bang Dong-bae | Bang Dong-bae | Living | 10/02/1988 | 38 | — | 28 |
 Jin Ki-joo An Soon-soo | An Soon-soo | Living | 26/01/1989 | 37 | — | 27 |
 Jang Joon-Yoo Song Shi-a | Song Shi-a | Living | 08/08/1988 | 38 | — | 28 |
 Kim Sa-Kwon Kim Seung-jae | Kim Seung-jae | Living | 05/01/1983 | 43 | — | 33 |
 Ko Kyu-pil Na Hyun-Ki | Na Hyun-Ki | Living | 02/05/1982 | 44 | — | 34 |
 Ahn Hyo-seop Ahn Jung-Woo | Ahn Jung-Woo | Living | 17/04/1995 | 31 | — | 21 |
 Choi Kwon Soo Song Su Hyeok [Young] | Song Su Hyeok [Young] | Living | 05/10/2004 | 21 | — | 12 |
 Conan O'Brien Goldfish/ as himself | Goldfish/ as himself | Living | 18/04/1963 | 63 | — | 53 |
 Lee Yeon-doo [Min U's teacher] | [Min U's teacher] | Living | 20/06/1984 | 42 | — | 32 |