When Aaron (Danny Webb) was young, his parents, Gordon Livesy (Gerard Fletcher) and Chas Dingle (Lucy Pargeter), separated and Chas left her son to live with his father and Gordon's second wife, Sandra (Janet Bamford).Aaron visits his mother in Emmerdale, where he tells her that he resents her for not raising him and explains that he feels that she abandoned him.
Despite this, Aaron returns to Emmerdale several months later, staying longer than expected as he came into contact with a person who had German measles and Sandra was pregnant.
Aaron returns home to his father and his stepmother, after telling Chas that while she was in the Army, her partner Carl King (Tom Lister) had a one-night stand with her cousin, Del Dingle (Hayley Tamaddon).
Miller successfully auditioned for the part and later admitted that he would have quit acting, if he had not been cast.
Aaron made his first appearance during the episode broadcast on 24 December 2003.
Aaron convinces his cousin, Belle Dingle (Eden Taylor-Draper), to take the day off school and is also caught stealing so Lisa (Jane Cox) throws him out.
Consequently, he and Chas move into Smithy Cottage with Paddy Kirk (Dominic Brunt) and Chas gives him the choice of going to college or getting a job so he gets a job at Cain's garage.Miller chose to leave the show in November 2011 and he made his final appearance on 5 April 2012.Aaron's exit storyline saw him accused of arson and so he left the village with his new partner Ed Roberts (Lloyd Everitt).Aaron (now Danny Miller) returns to the village two years later and is arrested by Ross Kirk (Samuel Anderson) for possession of drugs.He is cautioned then meets his mother but later runs away after Chas takes him home.The character was originally played by Danny Webb and appeared in a recurring capacity.