Park Kyung-hye

as Lee Min-yong

as Jung-sook

as Kyoung-ae

as Gambling Group

as Soon-ok

as Sa-wol

as Dok-sun

as Myung-sun

as Cha Ji-won

as Clerk Park Ji-eun

as Nurse Kim

as Radiologist

as Mi-jo

as Jae-hee

as Lee Kyeong-ja

as Internet Tutor

as Jung-mi

as Mina

as Na-kyung

as Worker at the Call Center

as Yang Jung-Won

as Kid Elf

as Union Staff

as Lee Hui Jae [Lee Hee-su's sister] • 10 eps

as Jung-ja • 2 eps

as Son Sae-byeol • 16 eps

as NIS Employee • 1 eps

as Cassandra / Yoon Ye-Seul • 16 eps

as Kim Yu-mi • 16 eps

as Choi Soo-kyeong • 16 eps

as Self • 4 eps

as Kim Ha-Na • 16 eps

as Yang Mi-Jin • 36 eps

as Dan Mun-hui • 16 eps

as Jang Ji-Hyun • 32 eps

as [Ha In's patient] • 3 eps

as Lee Sun-Yeong • 32 eps

as Goo Kye-young • 16 eps

as Seo Na-Rae • 32 eps

as Virgin Ghost • 16 eps

as Ae Bong's friend • 2 eps

as Go Sung-ran • 121 eps

as New candidate for a roommate • 1 eps

as Yang Jung-Won • 12 eps

1 eps

1 eps

as Self • 1 eps