Fay Butler (née Grimshaw) was the sister of Elsie Tanner. She is the mother of Bernard Butler and Sandra Butler and the aunt of Gary Bailey, Linda Cheveski and Dennis Tanner. During the Second World War, her childhood home of 18 Gas Street was bombed and her mother, father and seven of her siblings died. The only survivors were herself, Elsie and their other sister Phyllis.

Fay has never appeared on the Street.