M. Didius Falco – the man they love to blame
Helena Justina – a girl with a secret: hoping for a better bathroom
Julia Junilla – a dear little treasure
Nux – a dog, not quite so dear
The Sacred Geese of Juno and the Augurs' Sacred Chickens – protected species
Ma – a down-to-earth commentator
Pa (Geminus) – up to no good as usual
Maia Favonia – Falco's sister; inconveniently widowed
Cloelia (Maia's daughter) – hoping to become a Virgin
Marius (Maia's son) – wanting to stay on at school (a miracle)
Uncle Fabius (the dopey one) – a chicken-fancier, safely in the country
Petronius Longus – Falco's first partner; the one who pulled out
Rubella – awkward tribune of the Fouth Cohort of vigiles
Vespasian – Emperor of Rome; as high as you can get
Titus Caesar – a Romantic Prince
Berenice – a Queen of Hearts
Rutilius Gallicus – poet and ex-consul, on the up (getting Falco down)
Anacrites – Falco's second partner; the one who was pushed
Laelius Numentinus – an eminent chief priest (a wicked old basket)
Laelius Scaurus – a priest by rights (inactive)
Caecilia Paeta – a devoted mother (giving up her little darling)
Gaia Laelia – the next Vestal; a willing sacrifice?
Statilia Laelia – a devoted auntie (nothing wrong with that)
Ariminius Modullus – a devoted husband (wanting a divorce, of course)
Terentia Paulla – a married Virgin; another widow (convenient?)
Meldina – a beautiful part of the scenery (dangerous)
Athene – a reluctant nursemaid (safe with children?)
Ventidius Silanus – an Arval Brother, too dead to contribute
The Master of the Arval Brethren – a gourmet, too devious to comment
D. Camillus Verus – Helena's father; trying to do his best
Julia Justa – her mother; fearing the worst
A. Camillus Aelianus – a temporary scene-of-crime expert
Q. Camillus Justinus – Falco's new partner (permanently off the scene)
The camillus (no relation) – an Arval acolyte; a spotty youth
Constantia – a Virgin; a thriller
Gloccus and Cotta – contractors of distinction (absolutely terrible)