
A middle‑aged man whose marriage and career are in trouble suddenly finds himself back in the body of his 18‑year‑old self, giving him a second chance to chase the dreams and hopes of youth while navigating the challenges of his adult life with a fresh perspective. He must decide whether to relive past mistakes or shape a new future.
Does 18 Again have end credit scenes?
No!
18 Again does not have end credit scenes. You can leave when the credits roll.
Explore the complete cast of 18 Again, including both lead and supporting actors. Learn who plays each character, discover their past roles and achievements, and find out what makes this ensemble cast stand out in the world of film and television.

Lee Ki-woo
Choi Il-kwon

Lee Mi-do
Choo Ae-rin

Yoon Sang-hyun
Hong Dae-young (37 years old)

Ahn Nae-sang
JBC Director

Kim Ha-neul
Jung Da-jung

Kim Yoo-ri
Ok Hae-in

Kim Kang-hyun
Go Deok-jin

Wi Ha-jun
Ye Ji-hoon

Roh Jeong-eui
Hong Shi-ah

Lee Do-hyun
Hong Dae-young / Go Woo-young

Hwang In-yeop
Goo Ja-sung

Choi Bo-min
Seo Ji-ho

Han So-eun
Young Jung Da-jung

Ryeoun
Hong Shi-woo

Yoon Byul-ha
Ye Seo-yeon
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