Sarah Gallagher is the deceased wife of Neville and mother of Frank. Sarah was incredibly close to her son and the two of them shared a strong dislike of Neville. Sarah would often defend Frank from his father, sometimes making excuses for him. At one point she even claimed Frank was autistic to spare him his father's wrath, which Neville believed, until, in his words, "[he] called [him] a cunt in suspiciously fitting circumstances".