After the whirlwind success of ‘Happy Valley’, Siobhan Finneran is stepping up to a long-overdue leading role in an ITV police thriller. She talks to Katie Rosseinsky about delving into the secretive world of witness protection, why Sally Wainwright’s work struck such a chord, and juggling hard-hitting drama with comedy
Happy Valley’s Siobhan Finneran: ‘We’re all a bit of a mess, blundering our way through stuff’ … from the Independent Katie Rosseinsky
