The character returned to the series on 23 October 2014, and became the show's main antagonist throughout 2015. During that year, Robert had an affair Aaron Livesy (Danny Miller) – which led to the events of Robert killing Katie on the day he married Chrissie White (Louise Marwood); embarking on a feud with Aaron's mother Chas Dingle (Lucy Pargeter) and adopted father Paddy Kirk (Dominic Brunt); getting beat up and blackmailed by Chas' brother Cain (Jeff Hordley); and being shot by Aaron's ex-partner-in-crime Ross Barton (Michael Parr) in the Who Shot Robert Sugden? storyline, in the light of his affair with Aaron and role in Katie's death both getting exposed.