Sophie Edwards was a Scouse barmaid at the Gatsby Club who in 1975 gave away Betty Turpin's secret that she was Gordon Clegg's real mother to the residents of Coronation Street.
Sophie had been working at the Gatsby for a week or two when a foursome from the Street made up of Gordon, Ken Barlow, Ray Langton and Deirdre Langton went there to watch Rita Littlewood sing. Visiting his "auntie" Betty from London, Gordon monopolised Sophie for most of the evening, remaining at the bar for the duration and getting very drunk in the process. When he'd had one too many, Sophie looked after Gordon by ordering him a black coffee and then, when Gordon and his friends were leaving, she accompanied him in his taxi to Betty's house after getting the address from Deirdre. In his drunken stupor, Gordon arranged a date with Sophie at the Rovers Return for the next day and, at Hillside Crescent, introduced Betty to her as his mother. Fortunately for the pair, Sophie wasn't aware of the significance of Gordon's words and left Betty to look after Gordon.
Before her date, Sophie put in a shift at the Gatsby and was on hand when Rita was rehearsing the evening's songs, with Ernest Bishop accompanying. Sophie supplied the pair with sherry, which was free from the bar and consequently rancid. Taking an interest in the fact that Rita and Ernie were considering a jazz duo, Sophie suggested that Ernie black up for it.
Gordon had spent the morning nursing a hangover and didn't remember that he was due to see Sophie. Arriving at the Rovers on time, Sophie sat with Ray and Deirdre while she waited for Gordon. While chatting to them, Sophie commented that Gordon was the image of his mum, referring to Betty. Believing Maggie Clegg to be Gordon's mother, the Langtons corrected Sophie, and were ready to dismiss what she'd said until a flustered Gordon walked in - Bet Lynch having rang him to tell him that Sophie was there - and spirited her away. Sophie never set foot in the Street again but Gordon's actions were suspicious enough that they became a talking point and the truth rapidly emerged.