Kang Ha Neul has been cast as the lead of the upcoming JTBC drama 'Insider'.

'Insider' is described as an action-suspense drama telling the tale of trainee lawyer Yohan (played by Kang Ha Neul), who joins an infiltration investigation and struggles to win a chance to change his fate in the prison gambling world. Yohan has a unique poker face that he thinks will get him far, but the investigation doesn't go as planned.

The JTBC drama will be written by Moon Man Se, who was behind the screenplay for the OCN drama 'Priest', and directed by Min Yeon Hong, who's known as the director for OCN's 'Missing: The Other Side'. It will also be produced by Ace Factory, the production company behind tvN's 'Secret Forest' and JTBC's 'When the Weather is Fine'.

'Insider' is scheduled to premiere later this year.