Who Is She

Kim Hae-sook

Oh Mal-soon· 12 ep

Jung Zi-so

Oh Doo-ri· 12 ep

Jung Jinyoung

Daniel Han· 12 ep

Chae Won-been

Choi Ha-na· 12 ep

Sowon

Chan Mi· 12 ep

Lee Hwa-Kyum

Li Na· 12 ep

Lee Gwang-hee

Sang-joo· 12 ep

Yoo Jung-hoo

Park Jun· 12 ep

Ahn Se-min

Seongmun (Young)· 12 ep

Jung Bo-seok

Park Gap Yong· 12 ep

Seo Young-hee

Ban Ji Suk [Choi Ha-na's mother, Choi Min-seok's wife, Oh Mal-soon's daughter]· 12 ep

In Gyo-jin

Choi Min-seok· 12 ep

Cha Hwa-yeon

Kim Ae Sim· 12 ep

Lee Dal

Hoi· 12 ep

Oh Ji-yeon

Joon Hee· 12 ep

현재연

Soo Jin [member of the group Element]· 12 ep

Lee Ji-hyeon

Min Ah· 12 ep

낸시 양

Olla [member of the group Element]· 12 ep

장서원

Jay [member of the group Element]· 12 ep

Kim Sung-Won

Park Ja Young [Park Gap Yong's son]· 12 ep

Park Young-soo

Park Young Joon· 12 ep

Hong Seo-jun

Park Young Suk [Park Young Joon's brother]· 12 ep

Shin Shin-ae

Shin Soon Ae· 12 ep

Lee Yong-i

Jang Gwi Rye· 12 ep

Shin Yeon-sook

Oh Choon Boon· 12 ep

Choi Jung-woo

Byun Kang Suk· 12 ep

Kim Byeong-ok

Mysterious taxi driver· 12 ep