Elizabeth is a secondary protagonist, often in third-person perspective, and serves as the leader of The Thursday Murder Club. She has many connections and uses them to assist with investigations. She continues the group after her friend Penny Gray becomes ill.

Donna is a police officer determined to prove herself. She previously worked in a high-crime city and is now assisting in the investigation of a murder at Coopers Chase with Chris Hudson.

Ron is a strong-willed member of The Thursday Murder Club, known for his arguments at meetings about the local cemetery. He is in good shape for his age and has a son, Jason.

Ibrahim is a former psychologist and a member of The Thursday Murder Club. He joined the group due to his expertise in psychology, following its creation by Elizabeth and Penny Gray.

Ian is the majority owner of Coopers Chase and serves as one of the main antagonists. He is driven by money and plans to demolish a cemetery, leading to conflicts with several characters.

Tony is the first murder victim in the story, an ex-business partner of Ian Ventham. His murder becomes the catalyst for the investigation undertaken by The Thursday Murder Club and the police.

Bogdan is a contractor brought in to work on projects at Coopers Chase following Tony's death. He becomes involved in the murder cases at Coopers Chase.

Matthew Mackie is introduced as a priest arguing for the preservation of a local cemetery. His backstory is complex, with twists regarding his past and motivations.

Jason is Ron Ritchie’s son and a former boxing champion. He gets involved in the murder case due to past connections with the victim, Tony Curran.

Karen is trying to resist Ian Ventham’s attempts to coerce her into convincing her father to sell land. She remains loyal to her father, Gordon Playfair, rather than caving to financial incentives.

Chris is the lead investigator on the Tony Curran case. He works alongside Donna and gradually comes to trust The Thursday Murder Club as they assist in the investigation.

Penny is a former detective and co-founder of The Thursday Murder Club, who becomes incapacitated due to illness. She remains an influential presence in the story through her history with the group.

John is Penny's husband who spends much of his time by her side at the retirement home. He is deeply affected by his wife’s condition and associated developments in the murder investigations.

Bernard is Joyce's potential love interest, described as a quiet man who visits the cemetery regularly. His story intersects with Joyce as they become closer over time in *The Thursday Murder Club*.