An astute and observant elderly spinster from St. Mary Mead, whose deep understanding of human nature assists in solving the mystery. Her presence often helps unravel complex cases due to her unique perspective and intuition.

The patriarch of the Fortescue family, known for his unscrupulous business practices and controversial reputation. His sudden death triggers the central investigation.

The younger and somewhat estranged son of Rex, who returns home unexpectedly. He presents a charming façade that conceals deeper ambitions.

Lance's warm and sociable wife, who struggles with the oppressive atmosphere of her surroundings. She forms a connection with Miss Marple during the investigation.

Rex's eldest son and a partner in the family firm, characterized by his obsession with financial order. His lack of social grace often causes friction within the family.

A former nurse married to Percival, who faces challenges due to her lower social origins. Her true identity and motives bring additional complexity to the household dynamics.

An efficient and cynical housekeeper for the Fortescue family, privy to many of the household's secrets. Her professional demeanor masks a personal agenda.

A young parlor maid who previously trained under Miss Marple. Her tragic fate becomes a vital piece in the unfolding investigation.

Rex Fortescue's sister-in-law and a reclusive yet pivotal presence in the household. She holds crucial knowledge about the family's past and aids in the investigation.