Porschia Dagley is 49 and the youngest of Wilma Bayliss’ daughters. Her eldest sister, Eden, wants Robin to leave them alone because Porschia is currently going through chemotherapy.¹ 

Like her mother, Porschia is a social worker. When Strike and Robin eventually meet the sisters, Porschia is described as the heaviest with very short hair and penciled-in eyebrows (likely due to her chemotherapy) and hazel eyes. She also has a tattoo of a trident on the back of her neck.²

^{1: Troubled Blood, Chapter 18
2: Troubled Blood, Chapter 53}