Counterpart

J.K. Simmons plays Howard Silk, a gentle, quiet office worker who has been with the Office of Interchange (OI) for thirty years.

Nazanin Boniadi is Clare, a complex character involved in the murky world of espionage.

Harry Lloyd portrays Peter Quayle, a high-ranking official at the Office of Interchange.

Olivia Williams plays Emily Burton Silk, Howard Silk's wife with secrets of her own.

Sara Serraiocco is Baldwin, a deadly assassin navigating between worlds.

Nicholas Pinnock takes on the role of Ian Shaw, a key figure in the espionage activities within the show.

Betty Gabriel plays Naya Temple, an investigator brought in to uncover hidden threats.

Ulrich Thomsen is Aldrich, a seasoned operative in the Office of Interchange.

James Cromwell portrays Yanek, a character deeply embedded in the storyline's mysteries.

Jerry Ying is in the show as the Interface Hallway Guard.

Donald Allen Wright appears as the Diplomate Driver.

Ilka Urbach is in the show as the Burly Nurse.