Steve Murphy

Steve Murphy is a young DEA agent freshly posted to Colombia, driven by an earnest belief that hard work and clean hands can beat the cocaine trade. He narrates the story as it happens, wry and a little naive, still convinced the line between the law and the cartels is one he'll never have to cross.

Boyd Holbrook's flat, dryly amused voiceover gives the show its narrative spine, turning a sprawling true-crime saga into something intimate and confiding. The character works because his composure feels earned rather than smug at the start, which makes him a steady, trustworthy guide into a world that keeps testing exactly how steady he really is.