수상한 그녀

김해숙

Oh Mal-soon

정지소

Oh Doo-ri

정진영

Daniel Han

채원빈

Choi Ha-na

김소원

Chan Mi

Lee Hwa-Kyum

Li Na

Lee Kwang-hee

Sang-joo

Yoo Jung-hoo

정보석

Park Gap Yong

서영희

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

인교진

Choi Min-seok

차화연

Kim Ae Sim

이달

Hoi

Oh Ji-yeon

Joon Hee

현재연

Soo Jin [member of the group Element]

이지현

Min Ah

낸시 양

Olla [member of the group Element]

장서원

Jay [member of the group Element]

Kim Sung-Won

Park Ja Young [Park Gap Yong's son]

박영수

Park Young Joon

홍서준

Park Young Suk [Park Young Joon's brother]

신신애

Shin Soon Ae

이용이

Jang Gwi Rye

Shin Yeon-sook

Oh Choon Boon

최정우

Byun Kang Suk

김병옥

Mysterious taxi driver