Characters played by Hyun-Jung Go
Cheon Soo-ro
Characters played by Hae-Jin Yoo
Red Shoes
Characters played by Jae-suk Ha
Soo-Ro's Sister
Characters played by Chang-Seok Ko
Detective So
Characters played by Jin Kyung
Miss Go
Characters played by Mun-shik Lee
Sa Young-Cheol
Characters played by Won-jong Lee
Soo-Ro's Psychiatrist
Characters played by Sung-jin Nam
Detective
Characters played by Shin-yang Park
Baek Bong-Nam
Characters played by Dong-il Sung
Detective Sung
Characters played by Kim Young-joo
Chief secretary