Line Of Duty Series 5 Cast

Let’s be honest, when Series 5 of Line of Duty rolled around, we were all that friend who convinced the whole group to watch the same show, then got annoyed when they talked during the intense bits. You know the drill: you’re huddled on the sofa, snacks gone cold, refusing to blink. This season felt like a Sunday night dinner that starts lovely but ends with someone accusing you of stealing the last roast potato.

The New "Neighbour" You Can’t Trust

First up, we have Stephen Graham as DCI John Corbett. He swaggers in like that new bloke at work who brings in fancy doughnuts, but you just know he’s also the one who “borrows” your stapler and never returns it. Graham is so good, he makes you almost root for the bad guy, which is like cheering for the traffic warden who just gave you a ticket. His accent and quiet menace are the best kind of uncomfortable—like wearing wet socks to a meeting.

Corbett is the undercover boss from hell, but honestly, he’s also the only one who seems to be having a crackin’ time. You watch him and think, “Mate, you’re literally risking your life for a pension, and the office fruit is still gone by 10 a.m.” That’s the magic—Graham makes a bent cop feel like a tragic hero you’d buy a pint for, right before he nicks your wallet.

The Old Mates and Their Baggage

Then there’s the core trio: Vicky McClure, Martin Compston, and Adrian Dunbar. They are the friends you’ve kept since uni, even though one of them (looking at you, Hastings) still uses a flip phone. Steve Arnott (Compston) is like your mate who obsesses over the gym and his protein intake, but you know he’s secretly a softie. In Series 5, he’s nursing a bad back and a worse love life—basically, the human equivalent of a Monday morning.

Kate Fleming (McClure) is the pal who can drive a van, handle a gun, and still have time to judge your outfit. She’s the one you call at 2 a.m. to help bury a body (theoretically, of course). In this series, she’s suspicious of everyone, which is exhausting but also accurate—like scrolling through a dodgy group chat. And Hastings (Dunbar)? He’s the uncle who lectures you about “the acronym of the law” while accidentally breaking it. His catchphrase “Now we’re suckin’ diesel” is the most optimistically clueless thing you’ll hear, like a dad trying to use slang at a barbecue.

The Newbies Who Bring the Drama

Enter Rochenda Sandall as PC Lisa McQueen. She’s the quiet one in the room who actually knows where the bodies are buried. Think of her as that colleague who never raises her voice but has a spreadsheet of everyone’s office secrets. McQueen is the undercover officer who’s so deep in the game, she’s forgotten what real life smells like—probably burnt coffee and betrayal.

Then there’s Nigel Boyle as DCS Ian Buckells, the worst boss you’ve ever had. He’s the manager who takes credit for your work and then asks where you saved the file. Buckells is so blissfully incompetent, you half expect him to trip over a box of evidence and solve the case by accident. He’s like a photocopier that keeps jamming—annoying, but you can’t look away.

Why We All Felt Like a "Bent Copper" Watching This

What makes Series 5 so addictive is that it mirrors real life. You know that feeling when you’re in a group project and someone is clearly pulling strings behind the scenes? That’s H—the mysterious villain. Everyone’s pointing fingers, but no one’s cleaning the kitchen. It’s the office politics of a police force, except with more swearing and less printer toner theft.

The big interviews—the show’s signature—are like your own internal monologue when you’re trying to lie about eating the last biscuit. “WHERE’S THE PROOF?” Hastings booms, and you feel personally attacked. The cast makes you laugh, cringe, and shout at the telly. It’s the kind of show where you pause to yell, “Yeah, but why is she wearing a wire to the post office?”

And let’s not forget the side characters—like the forensic tech who’s always eating crisps. They’re the unsung heroes of your life, the ones who actually keep the Wi-Fi running while you obsess over a fictional corruption scandal. In the end, Line of Duty Series 5 cast is like a familiar gang of mates you’d meet at the pub for a pint and a moan about work. You leave feeling stressed, enlightened, and ready to accuse your neighbour of “outstanding officer conduct” for leaving the bins out too early.

So, next time you rewatch it, remember: you’re not just a viewer. You’re part of the team, the one who definitely would have cracked the case in five minutes—if only someone had listened to you. And that, my friend, is the true meaning of “bent” television.