 Back alongside Catherine are her sister Clare Siobhan Finneran, Clares partner Neil Con ONeill, her grandson Ryan Rhys Connah and the likes of Anne Gallagher Charlie Murphy and even the tragic Alison Garrs Susan Lynch. This season, viewers will finally get a look at the notorious Knezevics, the Halifax gangsters whose illegal and twisted doings ... Happy Valley season 3 cast Full list of characters and... 