Both films
Logan Lerman
Percy Jackson
A son of Poseidon learning how to live with a foot in two worlds.
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THE PEOPLE BEHIND THE MYTHS
Meet the half-bloods.
And the whole cast.
Demigods, Olympians, protectors and monsters: a guide to the principal performers in the two movies.
22 cast entries
Both films
Alexandra Daddario
Annabeth Chase
A daughter of Athena and a skilled fighter who joins Percy’s quests.
Both films
Brandon T. Jackson
Grover Underwood
Percy’s friend and protector, a satyr with a talent for getting through trouble.
Both films
Jake Abel
Luke Castellan
A son of Hermes whose relationship with the gods shapes the story.
The Lightning Thief
Pierce Brosnan
Chiron / Mr. Brunner
The teacher whose true identity is a centaur and trainer of heroes.
The Lightning Thief
Sean Bean
Zeus
The ruler of Olympus, demanding the return of his stolen master bolt.
The Lightning Thief
Kevin McKidd
Poseidon
The god of the sea and Percy’s father.
The Lightning Thief
Uma Thurman
Medusa
The snake-haired monster whose gaze can turn people to stone.
The Lightning Thief
Steve Coogan
Hades
The god of the Underworld, drawn into the dispute over the bolt.
The Lightning Thief
Rosario Dawson
Persephone
A goddess encountered during the visit to the Underworld.
The Lightning Thief
Catherine Keener
Sally Jackson
Percy’s human mother, whose fate drives his first journey.
The Lightning Thief
Melina Kanakaredes
Athena
The goddess of wisdom and Annabeth’s mother.
The Lightning Thief
Joe Pantoliano
Gabe Ugliano
Percy’s unpleasant stepfather.
Sea of Monsters
Douglas Smith
Tyson
Percy’s Cyclops half-brother, also a son of Poseidon.
Sea of Monsters
Leven Rambin
Clarisse
A competitive demigod and daughter of Ares.
Sea of Monsters
Nathan Fillion
Hermes
The messenger god and Luke’s father.
Sea of Monsters
Anthony Head
Chiron
The camp’s centaur mentor, taking over the role from Pierce Brosnan.
Sea of Monsters
Stanley Tucci
Mr. D / Dionysus
The god of wine, reluctantly overseeing Camp Half-Blood.
Sea of Monsters
Paloma Kwiatkowski
Thalia
A daughter of Zeus whose story is tied to the camp’s protection.
Sea of Monsters
Ron Perlman
Polyphemus (voice)
The Cyclops guarding the Golden Fleece.
Sea of Monsters
Shohreh Aghdashloo
The Oracle (voice)
The voice of the prophecy that haunts Percy’s future.
Sea of Monsters
Robert Knepper
Kronos
The Titan at the centre of Luke’s dangerous plan.
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Why does Chiron look different?
Pierce Brosnan plays Chiron in The Lightning Thief; Anthony Head takes over in Sea of Monsters. Hermes also changes actors, from Dylan Neal in the first film to Nathan Fillion in the sequel. The central quartet of Logan Lerman, Alexandra Daddario, Brandon T. Jackson and Jake Abel returns.
Is this the Disney+ cast?
No. This directory covers the 2010 and 2013 films. The television adaptation starts again with Walker Scobell as Percy, Leah Sava Jeffries as Annabeth and Aryan Simhadri as Grover.