I have hopes for Macdonald as the most intriguing villain yet. The acting, the facial hints of a double, if not triple, life, subtle, that ageless face able to morph from tender to slab-cold cruel within an eyebrow.
Line of Duty has been a smash for lots of reasons. The tight as a tourniquet plotting. The sensational twists. The slick editing. But at its heart are the three main characters, the little family against the machine.