Det. Insp. Harry Naylor

Harry Naylor is a detective inspector working inside the Complaints Investigation Bureau, the unit tasked with policing the police. He moves through the job with the flat, weary competence of someone who has seen colleagues protect their own for years, and who no longer expects gratitude for doing his.

Tom Georgeson plays him without any need to be liked, which is precisely what makes him watchable — a working detective, not a moral exemplar, doing an unglamorous job that isolates him from the very institution he serves. The performance trusts silence and procedure over speeches, and it pays off.