

By Dramabeans
4,51130 years

Lim Dong-hyun
1995-04-11
Seoul, South Korea
Man
Actor
2017βpresent
Yuehua
Source: Wikipedia
2023β2024
Jang Geon-u
Choi Kang-ho: Young-soon's son who works as a prosecutor and has a cold-hearted personality. He suffers from amnesia after an unexpected accident and returns as a child. Lee Kyung-hoon as child Choi Kang-ho Bae Jae-hyun as teenage Choi Kang-ho
2022β2023
Joo Yeo-jeong

2021
Hwang Hee-tae Choi Won-young as elder Hwang Hee-tae
2021
Young Lee Dong-sik
2021
Baek Seung-yoo / Baek Min-jae, a math genius. Choi Seung-hoon as young Baek Seung-yoo / Baek Min-jae
2020β2024
Lee Eun-hyeok
2020
18-year-old Hong Dae-young turned Go Woo-young (He is the drama counterpart of 37-year-old Mike O'Donnell turned Mark Gold (Zac Efron) in the original film.)
2019
Young Dae-han (ep. 1β3)
2019
Go Chung-myung

2018β2019
Gil Oh-dol, Oh-sol's younger brother who is a promising Taekwondo athlete.
2018
Dong Hae-bum
2017β2018
Young Lee Joon-ho
2016
Choi Yo-sub β Choi Sang-hyuk's son (Ep. 10).