알게될거야 (2004) featured a cast of 10 tracked actors. Of these, 10 (100%) are still alive today. The oldest surviving cast member is Jeon Bae-soo, age 56. This TV series starred Cha Soo-yeon and Oh Yoon-ah.
100% still with us· verified cast
Survivorship
Cast Reunion Index: 100% still living
Cast10 members
| Person | Character | Status | DOB | Age | DOD | Age in 2004 |
|---|---|---|---|---|---|---|
 Cha Soo-yeon Yoon Ji-On | Yoon Ji-On | Living | 15/08/1981 | 45 | — | 23 |
 Oh Yoon-ah Oh Hye-Ran | Oh Hye-Ran | Living | 14/10/1980 | 45 | — | 24 |
 Ji Hyun-woo Jang Sun-Il | Jang Sun-Il | Living | 29/11/1984 | 41 | — | 20 |
 Shin Dong-wook Choi Il-Doo | Choi Il-Doo | Living | 14/09/1982 | 44 | — | 22 |
| Living | 14/07/1977 | 49 | — | 27 | ||
 Kang Ji-hwan Suh In-Woo | Suh In-Woo | Living | 20/03/1977 | 49 | — | 27 |
 Jung Kyung-ho Ha Ki-Ho | Ha Ki-Ho | Living | 31/08/1983 | 43 | — | 21 |
 Lee Soo-kyung Song Na-Kyung | Song Na-Kyung | Living | 13/03/1982 | 44 | — | 22 |
 Jeon Bae-soo Executive Director | Executive Director | Living | 02/06/1970 | 56 | — | 34 |
 Lee Ji-hoon Kim Chul-Koo | Kim Chul-Koo | Living | 27/03/1979 | 47 | — | 25 |
