Park Jung-woo (18 episodes, 2017)
Cha Min-ho (18 episodes, 2017)
Kim Sun-hwa (18 episodes, 2017)
Shin Chul Shik (18 episodes, 2017)
Lee Sung-gyoo (18 episodes, 2017)
Seo Eun-hye (18 episodes, 2017)
Chun Pil-jae / Moong-chi [Cellmate] (18 episodes, 2017)
Han Sang-wook / Miryang [Cellmate] (18 episodes, 2017)
Na Yeon-hee (18 episodes, 2017)
Kang Joon-hyeok (18 episodes, 2017)
Park Ha-yeon (18 episodes, 2017)
CEO Cha Young-woon (18 episodes, 2017)
Jeong Han-seop [Deputy prosecutor general] (18 episodes, 2017)
Rockfish [Cellmate] / Woo Byung Joo (18 episodes, 2017)
Kwak Gwang-taek (18 episodes, 2017)
Jennifer Lee (2 episodes, 2017)
Myeong Geum-ja (2017) (unknown episodes)
Yoon Ji-soo (2017) (unknown episodes)
Bangjang (2017) (unknown episodes)