Characters played by Yoo Ji-Tae
Ji
In
Characters played by Ha-neul Kim
Yoon
So-Eun
Characters played by Ha Ji-Won
Seo
Hyeon-Ji
Characters played by Do-Yoon Kim
Ham Radio Club 1
Characters played by Sang-won Kim
In's Friend 1
Characters played by Kyung-Hoon Lee
Literature Club 3
Characters played by Seung-min Lee
(as Min-joo Kim)
Characters played by Yong-woo Park
Dong-hee
