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