That Affair Next Door Characters — Full List & Who's Who

The proud, observant narrator and amateur detective whose domestic knowledge repeatedly challenges the police theory.

The veteran detective from earlier Green novels, alternately amused, frustrated, and impressed by Amelia's investigation.

Howard's estranged wife and the actual murder victim, mistakenly killed in the dark.

Louise's husband, whose evasions and apparent recognition of the body make him the first major suspect.

Howard's brother, later arrested when a compromising letter and evidence about the keys point toward him.

The family patriarch, deeply distressed by the case and protective of both sons.

The brothers' sisters, who befriend Amelia and help her reenter the crime scene.

John Randolph's abandoned wife, the intended victim who escapes after disguising the dead Louise in her clothes.

Ruth's bigamous husband and Louise's killer, determined to remove Ruth so he can marry Miss Althorpe.

The wealthy young woman engaged to Stone, who shelters Ruth without initially knowing the full connection.

A cleaning woman whose testimony and actions around the empty house become important to Amelia's reconstruction.