Susan Ida Barlow (also Baldwin), was a fictional character in the British soap opera Coronation Street. She made her debut screen appearance on 5 April 1965. Susan has been portrayed by four actresses since her introduction. Katie Heannau was the first actress to the character. Wendy Jane Walker took over the role for two years from 1970. When the character returned in 1979, Suzy Patterson was recast in the role. She remained with the show until 1981, in 1985 Walker reprised the role until 1987. In 2001, Susan returned with Joanna Foster in the role.