ZEROBASEONE's Kim Ji-woong has been cast as the lead role of Do-yoon in the police buddy drama 'Siren'. The work is a multi-format project produced in several formats, including drama and film. Director Oh Ki-hwan, who made the movies ‘Gift’ and ‘Fashion King’, is in charge of directing. After completing the casting process, Kim Ji-woong begins filming and resumes his acting career.