18 Again (2020) featured a cast of 18 tracked actors. Of these, 18 (100%) are still alive today. The oldest surviving cast member is Ahn Nae-sang, age 61. This TV series starred Lee Do-hyun and Kim Ha-neul.
100% still with us· verified cast
Survivorship
Cast Reunion Index: 100% still living
Cast18 members
| Person | Character | Status | DOB | Age | DOD | Age in 2020 |
|---|---|---|---|---|---|---|
 Lee Do-hyun Hong Dae-young / Go Woo-young | Hong Dae-young / Go Woo-young | Living | 11/04/1995 | 31 | — | 25 |
 Kim Ha-neul Jung Da-jung | Jung Da-jung | Living | 21/02/1978 | 48 | — | 42 |
 Yoon Sang-hyun Hong Dae-young (37 years old) | Hong Dae-young (37 years old) | Living | 21/09/1973 | 53 | — | 47 |
 Roh Jeong-eui Hong Shi-ah | Hong Shi-ah | Living | 31/07/2001 | 25 | — | 19 |
 Ryeoun Hong Shi-woo | Hong Shi-woo | Living | 26/08/1998 | 28 | — | 22 |
 Wi Ha-jun Ye Ji-hoon | Ye Ji-hoon | Living | 05/08/1991 | 35 | — | 29 |
 Kim Kang-hyun Go Deok-jin | Go Deok-jin | Living | 03/04/1977 | 49 | — | 43 |
 Lee Mi-do Choo Ae-rin | Choo Ae-rin | Living | 25/05/1982 | 44 | — | 38 |
 Han So-eun Young Jung Da-jung | Young Jung Da-jung | Living | 08/07/1993 | 33 | — | 27 |
 Choi Bo-min Seo Ji-ho | Seo Ji-ho | Living | 24/08/2000 | 26 | — | 20 |
 Hwang In-youp Goo Ja-sung | Goo Ja-sung | Living | 19/01/1991 | 35 | — | 29 |
 Kim Yoo-ri Ok Hae-in | Ok Hae-in | Living | 29/08/1984 | 42 | — | 36 |
 Lee Ki-woo Choi Il-kwon | Choi Il-kwon | Living | 23/10/1981 | 44 | — | 39 |
 Ahn Nae-sang JBC Director | JBC Director | Living | 25/12/1964 | 61 | — | 56 |
 Yoon Byul-ha Ye Seo-yeon | Ye Seo-yeon | Living | 30/11/2013 | 12 | — | 7 |
 Ko Eun-min Lim Ja-young | Lim Ja-young | Living | 02/08/1988 | 38 | — | 32 |
 Kim Sun-min Choi Il-kwon [Young] | Choi Il-kwon [Young] | Living | 30/03/2000 | 26 | — | 20 |
 Woo Sang-hee Seo Soo-rin | Seo Soo-rin | Living | 22/10/1996 | 29 | — | 24 |