Danielle Ferrington

Danielle Ferrington is a detective sergeant on the Belfast murder squad, sharp and eager to prove herself as the hunt for a killer takes over the unit. She works the case with diligence and ambition, navigating a male-dominated squad room and the arrival of a formidable senior investigator from London.

Niamh McGrady plays her with quiet competence rather than showy ambition, giving the character a grounded professionalism that anchors the procedural scenes. Ferrington works because she never feels decorative — she's a working detective whose observations matter, and McGrady lets her intelligence show without needing to announce it.