High Society •
Anacrites – Imperial spy •
Camillus Aelianus – Eldest son of Decimus Camillus Verus •
Camillus Justinus – Youngest son of Decimus Camillus Verus •
Decimus Camillus Verus – Senator and father of Helena Justina •
Helena Justina – Daughter of the
Senator Decimus Camillus Verus •
Julia Justa – Wife of Camillus Verus and mother of Helena •
T. Claudius Laeta – Imperial clerk •
Titus Caesar – Eldest son of the Emperor •
Vespasian – Emperor
Low Society (Fountain Court) •
Cassius – Baker •
Castus – Junk-dealer •
Ennianus – Basket-weaver •
Lenia – Laundress •
Marcus Didius Falco – Informer and Imperial Agent from the Aventine. •
Smaractus – Landlord
Law and Order •
Arica – Member of the Sixth Cohort •
Arria Silvia – Wife of L. Petronius Longus •
Fusculus – Member of Petronius' enquiry team •
L. Petronius Longus – Enquiry chief in the XIII region and friend of Falco •
Marcus Rubella – Tribune of the Fourth Cohort of vigiles •
Martinus – Deputy •
Porcius – Recruit •
Scythax – Doctor •
Sergius – Punishment officer •
Tibullinus – Centurion of the Sixth Cohort
Other Citizens •
Alexander – Doctor •
Balbinus Pius – Crime boss •
Flaccida – Wife of Balbinus •
Florius – Husband of Milvia •
Lalage – Proprietress of the Bower of Venus •
Little Icarus – Member of Balbinus' Gang •
Macra – Employed at the Bower of Venus •
Milvia – Daughter of Balbinus •
Nonnius Albius – Court witness •
The Miller – Member of Balbinus' Gang ==Major themes==