Miss Night and Day

Eun-ji Jung

Lee Mi-jin

Jung-Eun Lee

Im Soon

Seo Hoo Baek

Ko Won

Choi Jin-Hyuk

Gye Ji Ung

Jung Young-joo

Im Cheong [Mi Jin's mother]

Kim A-young

Do Ga-yeong (Mi-jin's best friend)

Yoon Byung-hee

Joo Byeong-deok

Jung Suk-yong

Lee Hak-chan (Mi-jin's father)

Beom-ho Choi

Go Na-heun (Former soldier)

Choi Moo-in

Seo Mal Tae [Retired police officer]

Kwang-sik Kim

Cha Jae-seong (Deputy chief prosecutor)

Jae-Sung Jung

Baek Cheol-gyu (Hospital honorary director)

Jae-rok Kim

Geum Gwang-seok (Senior intern)

Ye-Won Mun

Tak Cheon-hee

Jung Soo-Kyo

Detective Kwon

Bae Hae-sun

Na Ok Hui

Kim Mi-ran

Woo Yeon

Kim Mi-ran

Kwak Geum-Hwa

Yang Joo-ho

Detective