Dark Alibi

A seasoned private investigator known for his calm demeanor, keen intellect, and methodical approach. He takes on Harley’s case to uncover the truth behind the wrongful accusation, relying on evidence and careful reasoning.

An ex-convict who has already served time and is wrongfully arrested for a bank robbery. He faces the execution deadline with quiet resilience, insisting on his innocence.

Harley’s daughter who implores Charlie Chan to prove her father’s innocence. She becomes deeply involved in the investigation, driven by family loyalty.

A showgirl whose work costume is found near the crime scene and who, along with others, becomes entangled in the case. She travels with the investigation and has knowledge of the suspects’ whereabouts.

A quiet tenant who is secretly married to Jimmy Slade, a convict who works in the prison’s fingerprint department. She becomes a focal point in the mystery and is later killed.

A bookkeeper whose fingerprints appear on the crime print cards. He is found at the scene and becomes a crucial link in the forensic trail.

A salesman connected to the robberies who turns violent to protect the operation. He kills Johnson to seal the case and later attempts to kill Chan.

Charlie Chan’s loyal chauffeur and assistant. He provides support during investigations and helps keep the investigation running smoothly.

June Harley’s boyfriend and the mastermind behind the robberies. He manipulates the evidence to frame Harley and control the situation.

A convict married to Miss Petrie who works in the prison’s fingerprint department and plays a central role in shaping the crime’s fingerprint hoax.

Harley’s landlady who rents to ex-convicts and owns the typewriter used to forge the note that starts the investigation.

Charlie Chan’s son who accompanies his father and aids the investigation during the case.

Prison staff or inmate named Brand who appears in the prison milieu surrounding the fingerprint scam.

A character connected to the broader criminal scheme; not deeply explored in the summary but present in the case.

The prison warden who oversees Harley’s confinement and interacts with the investigation’s progress.

A tenant in the building who adds color to the local community and helps populate the cast of suspects.