Characters in The Demigod Diaries

Percy Jackson

Stars with Annabeth in 'The Staff of Hermes,' recruited by the messenger god.

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

Luke Castellan

Narrates the opening prequel story set years before The Lightning Thief, alongside Thalia.

Leo Valdez

Leads the comic Heroes of Olympus story chasing the runaway furniture Buford.

Also in The Lost Hero, The Mark of Athena, The Blood of Olympus

Alabaster C. Torrington

Son of Hecate who fought for Kronos; central figure of the Haley-Riordan-authored 'Son of Magic.'

Annabeth Chase

Joins Percy on the quest to recover Hermes's stolen staff and appears at the end of Luke's diary.

Also in The Lost Hero, The Mark of Athena, House of Hades, The Blood of Olympus

Thalia Grace

Travels with Luke in his prequel diary, before the events of The Lightning Thief.

Also in The Lost Hero, The Blood of Olympus

Jason Grace

Joins Leo and Piper in the chase after the runaway furniture Buford.

Also in The Lost Hero, The Mark of Athena, House of Hades, The Blood of Olympus

Piper McLean

Accompanies Leo and Jason on the comic hunt for Buford.

Also in The Lost Hero, The Mark of Athena, House of Hades, The Blood of Olympus