Oscar Finlay

Margrave is a small town where everyone knows everyone and almost nothing happens. That is why the arrest of a stranger for murder stands out. Finlay knows the local police routine and what normal looks like. When he sees the crime isn't normal, he follows a detective's instinct instead of his colleagues' haste. That stubbornness, more than strength, is what draws him to Reacher. In the books, Finlay is already in Killing Floor, and the series keeps him and Roscoe at the center of the investigation.

In S1, Finlay is Margrave's chief detective and investigates the murder that put Reacher in jail. Something doesn't add up: the evidence points to a stranger, but the town seems to hide the rest. He starts looking at his own department differently.

When Reacher is released, Finlay and officer Roscoe team up with him. The three pull the thread of a counterfeit-money ring tied to businessman Kliner and Mayor Teale, and Finlay risks his job to see it through.

Finlay was born in Killing Floor (1997), Lee Child's first book. S1 of the series adapts that novel. Malcolm Goodwin had already worked with creator Nick Santora on Breakout Kings.