- Kim Min-gwi - Kim Tae-Oh
- Go Jin-Soo - [Detective]
- Moon Jung-dae - [Detective]
- Lee Jung-ok - Kim Hwang-Shik
- Ahn Chang-hwan - Won Yi
- Lee Hae-yeong - Oh Jong-Hwan
- Hwang Jae-yeol - Kim Yoo-Chul [Detective]
- Yoo Byeong-hun - [Employee]
- Bae Ho-geun - [Chief researcher]
- Park Kyung-Soon - [Researcher]
- Oh Han-kyul - Ji Oh [Young]
- Lee Dong-kyu - [TBM reporter]
- Lee Doll-hyung - Doctor
- Kim Hyung-min - Ha Young-Jae
- Kim Hyung-min - Ha Young Jae
- Lee Ga-heun - Gu Reum's mother
- Lee Ga-heun - [Gu Reum's mother]
- ??? - Kim Man-Shik
- Lee Yong-nyeo - Sister Stella
- Gong Sang-a - Nun
- Shin Yeon-woo - Pregnant woman
- Sung Do-hyun - Jung Ah's subordinate
- Yoon Jong-goo - Vengeful church member
- Ahn Seong-bong - Kim Cheol Soo's assassin
- ??? - Attorney Jung
- Kim Hong-sun
- Chun Sung-il
Kim Rae-won interpreta a Ji-O en la serie.
??? interpreta a Ha Neul Ae Gu-Reum en la serie.
??? interpreta a Yi-Son en la serie.
Kim Sang-ho hace el papel de Choi Jin-Hwan.
Jin Kyung interpreta a Hwang Jung-A en la serie.
??? hace el papel de Kim Cheol-Soo.
??? interpreta a Ryu Joong-Kwon en la serie.
Jeong Da-eun interpreta a Yoo-Na en la serie.
Han Kyu-won interpreta a Kim Jin-Soo en la serie.
Kim Min-gwi hace el papel de Kim Tae-Oh.
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