Characters in The Tyrant's Tomb

Apollo / Lester Papadopoulos

The fallen god, poisoned and grieving, confronting his own mortality and the prospect of true death.

Also in The Hidden Oracle, The Dark Prophecy, The Burning Maze, The Tower of Nero

Meg McCaffrey

Apollo's master, steadier and more powerful, fighting alongside the Roman legion.

Also in The Hidden Oracle, The Dark Prophecy, The Burning Maze, The Tower of Nero

Caligula

Surviving Triumvirate emperor leading the seaborne assault on Camp Jupiter.

Also in The Burning Maze

Commodus

Surviving emperor allied with Caligula in the attack on the Roman camp.

Also in The Dark Prophecy

Tarquin

Undead king of ancient Rome who raises the dead against the legion.

Frank Zhang

Praetor of Camp Jupiter and son of Mars whose life is tied to a piece of firewood he must risk.

Also in Camp Jupiter Classified - A Probatio's Journal, The Son of Neptune, The Mark of Athena, The Blood of Olympus

Hazel Levesque

Daughter of Pluto who helps lead the camp's defense and is chosen as a new praetor.

Also in The Son of Neptune, The Mark of Athena, House of Hades, The Blood of Olympus

Reyna Avila Ramírez-Arellano

Praetor of Camp Jupiter who co-issues the camp's emergency war plan as the Roman legion braces for attack.

Lavinia Asimov

A former Hunter-turned-camper who joins Apollo and Meg and helps defend Camp Jupiter.

Ella (harpy)

A harpy who has memorized the Sibylline Books and helps supply the prophecies Apollo needs.