18 Again
"You're young again. You're at an age full of dreams and hope. What's your dream now that you're young again?"
A JTBC Original
In a marriage that's fraying and a career stuck in a rut, a man faced with the dull ache of everyday life gets a second chance when his fate sends him back to his 18-year-old body. He wakes up in a world that looks, sounds, and feels different, yet carries the weight of his adult memories. Intent... Read more
Where to Watch "18 Again"
Not Currently Streaming
This title isn't available for streaming in the US right now.
Not Currently Available On (8 platforms)
Streaming availability last verified: January 24, 2026
About 18 Again
In a marriage that's fraying and a career stuck in a rut, a man faced with the dull ache of everyday life gets a second chance when his fate sends him back to his 18-year-old body. He wakes up in a world that looks, sounds, and feels different, yet carries the weight of his adult memories. Intent on mending broken bonds and finding purpose, he enrolls in a high school where he must pretend to be a new student while secretly rethinking every choice that shaped his family. The tension blends warmth with wit as the man tests long buried desires, confronts regrets, and discovers what really matters. The tone stays hopeful even as the protagonist wrestles with tough truths.
Directed by Ha Byung-hoon, 18 Again reimagines the 2009 film 17 Again for a Korean setting. The 2020 series aired on JTBC and streamed in regions. It is written by Ha Byung-hoon with Kim Do-yeon and An Eun-bin guiding the project.
Awards: The series earned nominations at major Korean award ceremonies, recognizing its performances and the blend of humor with emotional depth. Lead actors Lee Do-hyun and Kim Ha-neul were highlighted for their dual roles, and the ensemble earned praise for timing and warmth throughout the season.
Cultural Impact: The premise prompted conversations about midlife reinvention and family resilience, pairing funny scenes with genuine emotion. Viewers praised the chemistry between the leads and the show's willingness to place real concerns inside a light entertaining format that could appeal to different generations worldwide too today.
Reception & Themes: The drama drew positive attention for balancing sci fi elements with heartfelt family drama. Audience reaction noted its warm humor and performances, reflected in an 8.3 out of 10 rating from 253 votes. The show tackles identity, forgiveness and the meaning of renewal for many viewers today.
Details
- Release Date
- September 21, 2020
- Episode Length
- 1h 10m
- User Ratings
- 253 votes
- Type
- TV Series
- Seasons
- 1
- Episodes
- 16
- Network
- JTBC
- Status
- Ended
- Genres
- Drama, Comedy, Sci-Fi & Fantasy
- Country
- South Korea
- Studio
- JTBC Studios
- External Links
- View on IMDB
Official Trailer
Cast
Lee Do-hyun
Hong Dae-young / Go Woo-young
Kim Ha-neul
Jung Da-jung
Yoon Sang-hyun
Hong Dae-young (37 years old)
Roh Jeong-eui
Hong Shi-ah
Ryeoun
Hong Shi-woo
Wi Ha-jun
Ye Ji-hoon
Kim Kang-hyun
Go Deok-jin
Lee Mi-do
Choo Ae-rin
Han So-eun
Young Jung Da-jung
Choi Bo-min
Seo Ji-ho
Created by: Ha Byung-hoon, An Eun-bin, Choi Yi-ryun
Seasons (1 season, 16 episodes)
Season 1
16 episodes - 2020