Kirsty "Dotty" Cotton is a fictional character from the BBC soap opera EastEnders, played by Molly Conlin. She was introduced on 26 December 2008 as the daughter of established character Nick Cotton (John Altman). Dotty was used as Nick's partner in crime, as the duo planned to kill her grandmother Dot (June Brown) and inherit the money from her will. She and Dot subsequently became friends after Nick's failed murder attempt, due to Dotty sabotaging their murder plan at the last minute. In her final storyline, airing on 23 February 2010, she left with her mother Sandy (Caroline Pegg), whom she believed dead.