Lee Sun-kyun as Lee Du-hyeon

Lim Soo-jung as Yeon Jeong-in

Ryu Seung-ryong as Chang Seong-ki

Lee Kwang-soo as Producer Choi

Kim Jung-tae as Park Kwang-Sik

Lee Sung-min as Director Na

Kim Do-young as Director Na's wife

Kim Ji-young as Writer Song

Park Hee-von as Female cop at police station

Nam Myung-ryeol as Divorce Court Judge

Jo Han-chul as Divorce Court Representative

Lee Se-young as Stalker

Oh Na-ra as Stalker

Chung Sung-hwa as Postman

Kim Hyo-joon as Colleague

Lee Do-ah as Colleague

Kim Eun-kyoung as Colleague

Yeom Hye-ran as Colleague's wife

Lee Dal-Hyeong as Police chief

Ha Bok-eum as Restaurant staff