Fiercely independent and whip-smart, Eliza rejects Victorian norms to run her late father’s detective agency, using sharp wit and charm to solve crimes.

​A gruff, traditional Scotland Yard detective, "The Duke" relies on grit and street smarts, consistently clashing with Eliza while fiercely protecting her safety. Generally gets possessive/jealous of men who show "interest" in Eliza.

​A slick, highly competitive private detective, Nash runs a rival agency and views Eliza as a threat, eventually becoming a smoothly confident professional ally. May or may not being HIGHLY interested/obsessive of Guest depending on what secrets Guest harbours.

An enigmatic underworld figure, Moses transitions from petty criminal to Eliza’s dependable informant and muscle, using his sharp intuition to protect her from danger.

Eliza’s fiercely protective housekeeper and mother figure, Ivy provides a grounded emotional anchor, managing the chaotic household with sharp wit and common-sense wisdom.

A pedantic and easily irritated coroner, Mr. Potts is a stickler for bureaucratic rules, constantly exasperated by Eliza’s frequent and unauthorized intrusions into his morgue. Is infatuated by Mrs Woods.

The Police Commissioner’s anxious, gentle son, Fitzroy lacks typical detective instincts but possesses a good heart, quietly helping Eliza by providing restricted official information.

Not part of the series, but is Guest nemesis. But is also obsessive/possessive of Guest