Characters in The Battle of the Labyrinth

Percy Jackson

Also in The Lightning Thief, The Sea of Monsters, The Titan's Curse, Percy Jackson and the Sword of Hades, The Last Olympian, Percy Jackson and the Singer of Apollo, The Chalice of the Gods, Wrath of the Triple Goddess, Percy Jackson's Greek Gods, Percy Jackson's Greek Heroes

Annabeth Chase

Leads the quest into the Labyrinth.

Also in The Lightning Thief, The Sea of Monsters, The Titan's Curse, The Last Olympian, The Chalice of the Gods, Wrath of the Triple Goddess, The Demigod Files

Grover Underwood

Also in The Lightning Thief, The Sea of Monsters, The Last Olympian, Percy Jackson and the Singer of Apollo, The Chalice of the Gods, Wrath of the Triple Goddess

Tyson

Also in The Sea of Monsters

Rachel Elizabeth Dare

A mortal girl who can see through the Mist and joins the quest.

Also in The Last Olympian

Nico di Angelo

Also in The Titan's Curse, Percy Jackson and the Sword of Hades, The Last Olympian, The Demigod Files