This is the story of a father who died mysteriously in May of 1980, a mother who lives in the shadows with a bullet in her head and not being able to forget May 18th and their daughter, and the nation's greatest comedian, Hee-soo.
| Actor | Role |
|---|---|
 Kim Kkob-biHee-soo | Hee-soo |
 Kim Bu-seonMyung-hee | Myung-hee |
| JJeon Soo-hyunChul-soo | Chul-soo |
| KKim Chae-heeMyung-hee (Past) | Myung-hee (Past) |
 Lee Han-wiChoi Young-chan | Choi Young-chan |
| KKim Hyo-myeongChul-ho (Past) | Chul-ho (Past) |
| HHan Da-yeongTae-ja (Past) | Tae-ja (Past) |
 Lee Jae-guChul-ho | Chul-ho |
| SSeol Ji-yunNot listed | Not listed |
| HHan So-hyeonLee So-mi | Lee So-mi |
| LLim Seung-gyuNot listed | Not listed |
| KKim Jong-pilNot listed | Not listed |
 Oh Kyung-hwaDaughter In Law | Daughter In Law |
 Kim Chae-wonNot listed | Not listed |
 Kim Ri-wonPatient | Patient |