Characters played by Park Hae-il
Choi Hyeon
Characters played by Shin Min-a
Gong Yoon-hee
Characters played by Jin-Seo Yoon
University junior
Characters played by Kim Tae-hoon
Detective
Characters played by Hyeon-jin Baek
Professor Park
Characters played by In-sun Jung
Young receptionist
Characters played by Su-an Kim
Little kid
Characters played by Tae-Hoon Kim
Detective Yeong-min
Characters played by Na-ra Lee
Kim Chang-hee's wife
Characters played by Seung-wan Ryu
Florist
Characters played by So-yul Shin
Da-yeon