Ashley Davidson, portrayed by Kierston Wareing, made her first appearance on 7 September 2015. The character and casting were announced on 15 August 2015. Ashley will be a drug-dealer who was hunting for Ben Bradley's (Ben Richards) daughter Carly (Sophie Wise). Ashley will arrive in the village and meet with Trevor Royle (Greg Wood) where she demands money that she lost after Carly stole from her.
Ashley has been billed as a "venomous vixen", with Wareing commenting that her character was a "control freak" and that she doesn't have "a nice bone in her body.
Ashley first appears in The Loft, and after hearing that Trevor has killed Carly, she tells him that her debts are now his, as Carly stole an expensive diamond ring from Ashley before she died. However, unbeknownst to everyone, Nico Blake (Persephone Swales-Dawson) is the real murderer. She then bumps into Theresa McQueen (Jorgie Porter), and it is revealed that they shared a cell when Theresa was in prison for murdering Calvin Valentine (Ricky Whittle). She confides in Ashley that Patrick Blake (Jeremy Sheffield) is constructing a special needs unit at Hollyoaks High School, but he and Theresa have scammed the money. Ashley then threatens Trevor, telling him to help her kidnap Patrick or she will reveal his dark past. However, Robbie Roscoe (Charlie Wernham), who is helping Ben send Trevor to prison for murdering Carly, overhears them and informs Ben. Hours before they are set to kidnap Patrick, Trevor realises that somebody has exposed their plan to the police. In a shocking twist, the pair kidnap Holly Cunningham (Amanda Clapham), Trevor's babysitter, believing her to be the snitch. Ashley plans to kill Holly and make her death look like an overdose, however Robbie enters the basement where they are keeping Holly hostage and contacts his brother Jason (Alfie Browne-Sykes), who is a police officer. Ashley is determined to go through with killing Holly as her reputation will be damaged otherwise, however Trevor releases Holly, angering Ashley.
Ashley is killed by the gloved hand killer. She assumes that they are there to give her her medicine. But the killer injects her. Charles S'Avage (Andrew Greenough) sees this, and finds out the killer. But before he can tell anyone, he is killed by the gloved hand killer.