Kim Ha-neul
Yoon So-eun
Yoo Ji-tae
Ji-in
Ha Ji-won
Soe Hyeon-ji
Park Yong-woo
Ji Dong-hee
Kim Min-joo
Hur Sun-mi
Shin Cheol-jin
Security Guard
Y
Yoo Tae-gyun
Yoon So-eun's Father
L
Lee In-ok
Yoon So-eun's Mother
L
Lee Yeong-gwang
Professor
Kim Sang-won
Ji-in's Friend
K
Kong Yu-seok
Ji-in's Friend
Y
Yoo Jin-hee
Hospital lady
Maeng Bong-hak
Doctor
K
Kim Do-sik
Butler
Kim Bang-sun
Librarian
K
Kim Do-yoon
Ham Radio Club 1
Son Kang-gook
Ham Radio Club 2
L
Lee Kyung-hoon
Literature Club 3
Lee Seung-chan
Literature Club 4