is an American science fiction thriller television series created by Justin Marks, ordered to series by the premium cable network Starz.The first episode was directed by Morten Tyldum. Starz ordered two 10-episode seasons. The premiere episode first aired on December 10, 2017. It stars Acadamy Award winning actor J. K. Simmons in a dual role.
An espionage thriller with a metaphysical twist, Counterpart tells the story of Howard Silk (Simmons), a lowly cog in a bureaucratic UN agency who is turning the last corner of a life filled with regret, when he discovers the agency he works for is guarding a secret: a crossing to a parallel dimension. Through Howard and his "counterpart" on the other side, the show will navigate themes of identity, idealism, what ifs, and lost love.