So Long, See You Tomorrow
2h 24m·Drama·
On the night that 17-year-old Dong-jun's only friend, Kang-hyeon, fell from a high place, Dong-jun made a choice that determined the direction of his entire life. Dong-jun's regrets and remorse following that choice made him experience life in three different universes. These are the various lives of the 42-year-old Dong-juns who live different lives in Seoul, Daegu and Busan 20 tears later.
| Actor | Role |
|---|---|
 Sim Hee-seopDong-jun | Dong-jun |
 Hong Xa-binYoung Dong-jun | Young Dong-jun |
 Shin Joo-hyupYoung Kang-hyeon | Young Kang-hyeon |
 Kim So-heeYoung Dong-hee | Young Dong-hee |
 Kang Chae-yunYeong-ji 1 | Yeong-ji 1 |
 Kim Joo-ryoungDong-jun's Mother | Dong-jun's Mother |
 Kim Hak-sunDong-jun's Father | Dong-jun's Father |
 Kwon Ji-wooJu-ho | Ju-ho |
 Ok Ji-youngYun-ju | Yun-ju |
 Kwon Dong-hoSeong-il | Seong-il |
 Song Chang-euiKang-hyeon | Kang-hyeon |
 Woo Mi-hwaAcademy director | Academy director |
| GGwak Jeong-gilElderly Man in Room 502 | Elderly Man in Room 502 |
 An Min-youngDong-jun's Stepmother | Dong-jun's Stepmother |
 Son Ji-naKang-hyeon's Mother | Kang-hyeon's Mother |
 Son Seong-chanKang-hyeon's Father | Kang-hyeon's Father |