- Kim Rae-won
- Â Zi O 12 episodes, 2021
- Lee Da-hee
- Â Ha Neul Ae Gu Reum 12 episodes, 2021
- Kim Sung-oh
- Â Lee Son 12 episodes, 2021
- Park Hyuk-kwon
- Â Kim Cheol-soo 12 episodes, 2021
- Ahn Nae-sang
- Â Ryu Jeung Kwon 11 episodes, 2021
- Kim Sang-ho
- Â Choi Jin Hwan 11 episodes, 2021
- Hwang Jae-Yeol
- Â Detective Kim Yoo Cheol 11 episodes, 2021
- Jin Kyung
- Â Hwang Jung Ah 10 episodes, 2021
- Jung Da-Eun
- Â Yoo Na 9 episodes, 2021
- Ahn Chang-hwan
- Â Won Yi 7 episodes, 2021
- Oh Han-kyul
- Â Zi O (young) 7 episodes, 2021
- Kim Min-Gwi
- Â Tae Oh 7 episodes, 2021
- Han Kyu-Won
- Â Detective Kim Jin Soo 6 episodes, 2021
- Jung Eun-chae
- Â Ms. Jung 5 episodes, 2021
- Lee Hae-young
- Â Oh Jong Hwan 5 episodes, 2021
- Kim Hyeong-min
- Â Ha Young Jae 5 episodes, 2021
- Seo Eun-Sol
- Â Gu Reum (young) 4 episodes, 2021
- Lee Joong-ok
- Â Hwang Shik 2 episodes, 2021
- Lee Yong-nyeo
- Â Sister Stella 2 episodes, 2021
- Kong Sang-ah
- Â Nun at Euicheon Church 2 episodes, 2021
- Yoon Jong-goo
- Â Vengeful church member 2 episodes, 2021
- Bae Ho-geun
- Â Chief Researcher at Human Tech 2 episodes, 2021
- Ga-Heun Lee
- Â Gu Reum's mother 2 episodes, 2021
- Kim Dong-won
- Â Dong-won 1 episode, 2021
- Lee Won-jong
- Â Kim Man Shik 1 episode, 2021
- Lee Dong-kyu
- Â TBM reporter 1 episode, 2021
- Shin Yeon-woo
- Â Pregnant woman 1 episode, 2021
