Crushology 101 (2025) featured a cast of 21 tracked actors. Of these, 21 (100%) are still alive today. The oldest surviving cast member is Ha Mheen, age 57. This TV series starred Roh Jeong-eui and Lee Chae-min.
100% still with us· verified cast
Survivorship
Cast Reunion Index: 100% still living
Cast21 members
| Person | Character | Status | DOB | Age | DOD | Age in 2025 |
|---|---|---|---|---|---|---|
 Roh Jeong-eui Ban Hee-jin | Ban Hee-jin | Living | 31/07/2001 | 25 | — | 24 |
 Lee Chae-min Hwang Jae-yeol | Hwang Jae-yeol | Living | 15/09/2000 | 26 | — | 25 |
 Cho Jun-young Cha Ji-won | Cha Ji-won | Living | 26/12/2002 | 23 | — | 23 |
 Kim Hyun-jin Cho Ah-rang | Cho Ah-rang | Living | 24/08/1996 | 30 | — | 29 |
 Choi Ji-su Nam Kkot-nim | Nam Kkot-nim | Living | 25/08/1997 | 29 | — | 28 |
 Lee Ji-hoon Ban Young-min | Ban Young-min | Living | 27/03/1979 | 47 | — | 46 |
 Hong Min-gi Jin Hyeon-oh | Jin Hyeon-oh | Living | 12/03/2002 | 24 | — | 23 |
 Nam Kyu-hee Kwon Bo-bae | Kwon Bo-bae | Living | 06/10/1999 | 26 | — | 26 |
 Kim Jae-hwa Kim Hyeon-kyung | Kim Hyeon-kyung | Living | 01/09/1980 | 46 | — | 45 |
 Kim Min-chul Lee Dong-ha | Lee Dong-ha | Living | 07/09/2000 | 26 | — | 25 |
 Wang Bit-na Lim Kyung-hwa | Lim Kyung-hwa | Living | 15/04/1981 | 45 | — | 44 |
 Kim Hyeon-mok Ko Bong-su | Ko Bong-su | Living | 18/09/1991 | 35 | — | 34 |
 Jo Hyun-ah Park Hye-young | Park Hye-young | Living | 28/08/1989 | 37 | — | 36 |
 Hwang Hye-jin Sculpture Student | Sculpture Student | Living | 26/07/2002 | 24 | — | 23 |
 Jeon So-young Han Yeol-eum | Han Yeol-eum | Living | 27/03/2002 | 24 | — | 23 |
 Lee Jin-woo [High school art teacher] | [High school art teacher] | Living | 13/09/2004 | 22 | — | 21 |
 Kim Hwi-gyu [Library student] | [Library student] | Living | 08/01/1992 | 34 | — | 33 |
 Cho Jae-kyeong Movie Club Staff (Eps 10) | Movie Club Staff (Eps 10) | Living | 30/06/1995 | 31 | — | 30 |
 Moon Ki-young Doctor | Doctor | Living | 15/02/1972 | 54 | — | 53 |
 Ha Mheen Arte Foundation Staff (Eps 10) | Arte Foundation Staff (Eps 10) | Living | 20/09/1969 | 57 | — | 56 |
 Yoon Tae-yi Staff | Staff | Living | 23/09/1998 | 28 | — | 27 |