Riley Costello is a fictional character from the British Channel 4 soap opera, Hollyoaks, played by Rob Norbury. Riley was introduced on 20 July 2010 with the Costello family as part of a cast overhaul of the series. In December 2011, the serial's executive producer Emma Smithwick said that Riley would remain in Hollyoaks despite his family's departure. On 14 September 2012, it was announced Riley was to leave Hollyoaks and Riley was killed off in a shooting during the episode airing 3 October 2012.