Susan Barlow (also Baldwin) is a fictional character from the British ITV 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 play the character, appearing sporadically in the 1960s uncredited. Wendy Jane Walker took over the role for 26 episodes between 1970 and 1974. When the character returned, Suzy Patterson was recast in the role. She appeared in eight episodes from December 1979 until July 1981. Walker reprised the role on a permanent basis from October 1985 until November 1987. The fourth actress to play the role was Joanna Foster, who appeared in eight episodes in 2001 until the character was killed off. The character's final appearance was on 11 February 2001.