Logan Lerman as Percy Jackson
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Dove Cameron as Annabeth Chase
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Marie Avgeropoulos as Thalia Grace
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Alexandra Daddario as Silena Beauregard
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Michael B. Jordan as Charles Beckendorf
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Ross Lynch as Will Solace
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Jake Abel as Luke Castellan
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Leven Rambin as Clarisse La Rue
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Blue Astrid as Lou Ellen Blackstone
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Finn Wolfhard as Nico di Angelo
Sygin as Bianca di Angelo
Everybody else is the same as before