Diana is a cynical, retired photojournalist who has found herself consigned to the retirement home after a career documenting some of the 20th century's most dangerous events has left her single and with no one in her life outside of her niece, and later, her great-niece. Her frustration at the prospect of years of being alternately patronised and ignored at Bayview is soon channelled into attempts to subvert the régime of the retirement home and taunting the staff regarding their flaws and corrupt nature. Though retired, Diana remains connected with several powerful journalists, which she uses to blackmail the board of directors at Bayview (and Bayview manager Harvey Bains) to allow her to stay in Bayview despite her disruptive behaviour. Her only known living relatives are her niece Sarah and later, Sarah's daughter Diana. Sarah runs a modelling agency and loves Diana, though Diana is emotionally distant from her niece, going so far as to tell people that her niece runs a prostitution ring and constantly attempts to kill her with poison. Her nickname for Sarah is 'The Clapham Strangler'. As the series progresses, the two become closer after Sarah undergoes a whirlwind courtship and marriage that results in pregnancy; the marriage fails but produces "the Diana of the Future," as the new Great-Aunt Diana blesses the newborn. Just before Baby Diana arrives, the great-aunt-to-be reveals that much of her hostility towards the world stems from the fact that she is infertile; this incapability is one of her very few regrets in life.