The Mole (Köstebek) (translated)

Köstebek is a Turkish television series that aired between 1997 and 1999, with a cast including Oktay Kaynarca, Ceyda Düvenci, Mustafa Avkıran, Seray Sever, and Taner Ertürkler.

Note: an unrelated American film also circulates under the same Turkish title — Michael Mann's "The Insider" (2000), starring Al Pacino and Russell Crowe, was released in Turkey as "Köstebek." The two productions are distinct.