Cast

Lee Jung-jae
Seong Gi-hun / "No. 456"
Park Hae-soo
Cho Sang-woo / "No. 218"
Jung Ho-yeon
Kang Sae-byeok / "No. 067"
Wi Ha-joon
Hwang Jun-ho
Oh Yeong-su
Oh Il-nam / "No. 001"
Heo Sung-tae
Jang Deok-su / "No. 101"
Kim Joo-ryoung
Han Mi-nyeo / "No. 212"
Anupam Tripathi
Ali Abdul / "No. 199"
Lee Yoo-mi
Ji-young / "No. 240"