If you haven’t finished the series, stop here. Really. I’m saving you from a decade of therapy bills. Still here? Okay. In the final season, we learn that H is DCS Ian Buckells. Yes, that Buckells. The bumbling, incompetent, “I’m just a paper-pusher” Buckells. The guy who couldn’t find his own badge with a map.
That’s the twist: the most dangerous bent copper isn’t a mastermind. He’s a mediocre man who floated through the system by being useless. Show creator Jed Mercurio said it himself: “The biggest threat to integrity is not genius evil, but institutional cowardice.” Buckells didn’t need to be smart. He just needed to survive while everyone else fought each other.
And honestly? That’s more terrifying than a classic villain. Because you know a Buckells in real life. He’s the coworker who always “misses” the meeting. The boss who nods while the system burns. That is the message of Line of Duty: corruption isn’t a shadowy figure—it’s a guy who chokes on his own incompetence but still keeps climbing.
The aftermath: did we get closure?
Look, I won’t lie. Half the internet was furious. “That’s it? A middle manager with a boring moustache?” People wanted a Bond villain, a genius. Instead, we got a guy who looked like he’d struggle assembling IKEA furniture. But here’s the irony: the show spent years telling us that H isn’t one person—it’s a system. Buckells was just the end of the chain.
Line Of Duty star revealed as 'H' on how they learnt true identity | UK
And that’s the stroke of genius. In a world of backstabbing, power lunches, and spin, the ultimate villain isn’t a Moriarty. It’s a bureaucratic ghost who signs the wrong papers and lets everyone else take the fall. You walk away from the finale feeling cheated, but also haunted. Because you realize you’ve met a dozen Buckells in your own life.
