Marcus Didius Falco – fixer, traveller and playwright
Helena Justina – his well-read wife and tour-planner
Julia Junilla, Sosia Favonia, Flavia Albia – their well-behaved poppets
Aulus Camillus Aelianus – Helena's brother, a diligent student
Fulvius – Falco's enigmatic uncle, a negotiator
Cassius – his life partner, a wonderful host
M. D. Favonius, aka Geminus – Falco's father, who was ordered not to come
Thalia – who will regret bringing him, an artiste
Jason – her python, a real curiosity
At the Royal Palace
The Prefect of Alexandria and Egypt – highly renowned (name not recorded)
A bunch of dim rich boys – his admin staff, typical high-fliers
Legionaries
Gaius Numerius Tenax – a centurion who gets the awkward jobs
Mammius and Cotius – his back-up, hungry for glory
Tiberius and Titus – on duty at the Lighthouse, bored (not for long)
At the Alexandria Museion
Philetus – the Museion Director, uplifted on merit?
Theon – Librarian of the Great Library, downcast
Timosthenes – of the Serapeion Library, hungry for promotion
Philadelphion – the Zoo Keeper, a ladies' man
Apollophanes – virtuous Head of Philosophy, a toady
Zenon – Chief Astronomer and not accountable
Nicanor – Head of Legal Studies, honest (honestly!)
Aeacidas – a self-assured tragedian, as good as anyone
Pastous – a library assistant, closely taking stock
Chaereas and Chaeteas – zoo and autopsy assistants, good family folk
Sobek – a Nile crocodile, hungry for action
Nibytas – an obsessive old reader and book-lover
Heras, son of Hermias – a Sophist scholar, none too wise
Students – as you would expect
Aedemon – an empirical physician (purges and laxatives)
Heron – a deus ex machina, earthly god of machines
Colourful Alexandrian characters
Roxana – an admired young woman, with poor sight
Psaesis – a litter-bearer (deserves a raise)
Katutis – in the gutter, gazing at the stars
Petosiris – an undertaker (knows where the bodies are)
Itchy and Snuffly – his helpers (stitching people up)
Diogenes – an ambitious man of commerce
A box-maker – his sidekick
Also
The legendary catoblepas – not appearing, but deserves a mention
The gnu – pure nostalgia