18 Again follows unemployed and soon-to-be-divorced 37-year-old Hong Dae-young (Yoon Sang-hyun) who is given an opportunity to go back in time to live as his 18-year-old self – a talented and popular basketball player.
As an 18-year-old, he assumes a new identity as Ko Woo-young (Lee Do-hyun) and attends the same school as his children, Hong Shi-A (Roh Jeong-eui) and Hong Shi-woo (Ryeoun) where he learns about the difficulties and challenges they face on a daily basis.
Based on the popular 2009 Movie, 17 Again.
| Directed by: | Ha Byung-hoon |
| Written by: | Kim Do-yeon, An Eun-bin, Choi Yi-ryul |
| Starring: | Kim Ha-neul, Yoon Sang-hyun, Lee Do-hyun |
| Extended Cast: | Kim Yoo-Ri, Wi Ha-joon, Lee Ki-Woo, Kim Gang-hyun, Lee Mi-do, Roh Jeong-Eui, Ryeo Un, Choi Bo-min, Hwang In-yeop, Lee Chun-woo, Oh So-hyun, Song Yoo-hyun, Kim Han-sang |
| Original network: | JTBC |
| Original release: | 21 September 2020 |
| No. of episodes: | 16 |
| Running Time: | 70 minutes |
| Production Company(s): | JTBC Studios |
| Distributor: | JTBC |
| Source: | JTBC |
