Yang İk-jun

Jung Jong-suk (voice)

Oh Jung-se

Hwang Kyung-min (voice)

Kim Hye-na

Kim Chul (voice)

Park Hee-bon

Young Hwang Kyung-min (voice)

김꽃비

Young Jung Jong-suk / Female Karaoke Employee (voice)

Jo Yeong-Bin

Kang-min (voice)

허지웅

Detective #1 (voice)

Kyung-soon

Jong-suk's Mother (voice)