L.U.C.A.: The Beginning

Ji-O

Ha Neul Ae Gu-Reum

Yi-Son

Choi Jin-Hwan

Hwang Jung-A

Kim Cheol-Soo

Ryu Joong-Kwon

Yoo-Na

Kim Jin-Soo

Kim Tae-Oh

[Detective]

[Detective]

Kim Hwang-Shik

Won Yi

Oh Jong-Hwan

Kim Yoo-Chul [Detective]

Attorney Jung

Ha Young Jae / Ha Young-Jae

[Gu Reum's mother] / Gu Reum's mother

Gu Reum [Young]

Kim Man-Shik

Sister Stella

Nun

Vengeful church member