Cahir

Cahir arrives as a masked, black-armored soldier in service to the Nilfgaardian empire, hunting Ciri through burning Cintra with cold, single-minded purpose. He seems less a man than an instrument of conquest, appearing wherever the princess flees, saying little, and leaving devastation behind him.

Eamon Farren plays him first as pure menace — a face-obscuring helmet and unblinking pursuit that makes him feel almost mythic. The reveal of his human face is the show's early bait-and-switch, letting Farren layer guilt and obsession under the armor once we see there's a person, not just a weapon, chasing her.