Line of Duty BBC2, 9pm
Jed Mercurio’s highly acclaimed, multi-awardwinning crime thriller is back for a new run. Once again, it will follow the work of the AC-12 team as they investigated another possible case of wrongdoing by their fellow police officers. And while the core cast remains the same, guests actors are brought in to play the newcomers. This time it’s Daniel Mays who will be taking a starring role. He plays Sgt Danny Waldron, leader of an armed response unit who is being investigated after a suspect was shot dead during an incident.