Insider

Insider is a 2022 South Korean television series starring Kang Ha-neul, Lee Yoo-young, and Heo Sung-tae. It aired from June 8 to July 28, 2022 on JTBC's Wednesdays and Thursdays at 22:30 (KST) time slot for 16 episodes. Synopsis The series revolves around a judicial trainee whose life turns upside down when he goes on an undercover investigation, and ends up struggling to try to recover his normal life. Cast Main Kang Ha-neul as Kim Yo-han, a judicial trainee who lives with his grandmother alone. He goes to jail for an undercover investigation at the suggestion of senior prosecutors. Lee Yoo-young as Oh Soo-yeon, a successful businesswoman who made a great fortune through her connections. Um Chae-young as young Oh Soo-yeon Heo Sung-tae as Yoon Byung-wook, the chief prosecutor of the 2nd Division of Financial Tax Investigation at the Central District Prosecutors' Office.