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Meet the Cast Joining Season 2 of ‘Percy Jackson’ — From Gods and Demigods to Monsters!

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Dec 10, 2025 2:09 pm·

By Hanna Wickes

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Season two of Percy Jackson and the Olympians is finally here, and fans are gearing up for another epic adventure. The Disney+ series continues to follow Rick Riordan’s beloved books, this time diving into The Sea of Monsters. With the first two episodes now streaming, we’re breaking down all the new faces joining the cast and what fans can expect from this action-packed season.

Percy returns to Camp Half-Blood one year after season one, only to discover his world is flipped upside down. Friendships are shifting, a cyclops brother is revealed, Grover is missing, and the camp is under siege by Kronos’ forces. To save the day, Percy must venture into the dangerous Sea of Monsters, where destiny awaits.

So, who joins the cast for Season 2? Scroll through our gallery below to uncover who’s playing who in Sea of Monsters.

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2249878443LOS ANGELES, CALIFORNIA - DECEMBER 03: Daniel Diemer attends the world premiere of Disney+'s "Percy Jackson and the Olympians" Season 2 at Academy Museum of Motion Pictures on December 03, 2025 in Los Angeles, California. (Photo by Savion Washington/Getty Images)

Daniel Diemer – Tyson

Daniel Diemer joins as Tyson, a shy, street-smart Cyclops who discovers he’s Percy Jackson’s half-brother. With a heart as big as he is, Tyson finally finds a place to belong at Camp Half-Blood.

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Sandra Bernhard, Kristen Schaal, and Margaret Cho – The Gray Sisters

These three comedic icons take on the roles of Anger, Tempest, and Wasp — the Gray Sisters. They share one eye, one tooth, and run a New York taxi firm, crossing paths with the heroes in unexpected ways.

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2192552808 BEVERLY HILLS, CALIFORNIA - JANUARY 05: Timothy Simons attends the 82nd Annual Golden Globe Awards at The Beverly Hilton on January 05, 2025 in Beverly Hills, California. (Photo by Amy Sussman/Getty Images)

Timothy Simons – Tantalus

Timothy Simons portrays the sardonic Tantalus, cursed with eternal hunger and now interim Activities Director at Camp Half-Blood.

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2249877152. LOS ANGELES, CALIFORNIA - DECEMBER 03: Tamara Smart attends the world premiere of Disney+'s "Percy Jackson and the Olympians" Season 2 at Academy Museum of Motion Pictures on December 03, 2025 in Los Angeles, California. (Photo by Savion Washington/Getty Images)

Tamara Smart – Thalia Grace

Thalia Grace, Zeus’ daughter turned protective tree, is brought to life by Tamara Smart. Fierce, loyal, and a bit of a punk, Thalia is back to defend her friends and the camp.

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2036337472LOS ANGELES, CALIFORNIA - FEBRUARY 24: Courtney B. Vance, President and Chairman of the Board of the SAG-AFTRA Foundation, attends the 30th Annual Screen Actors Guild Awards at Shrine Auditorium and Expo Hall on February 24, 2024 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images)

Courtney B. Vance – Zeus

Courtney B. Vance replaces the late Lance Reddick as Zeus, honoring his predecessor while bringing his own gravitas to the god of gods.

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-2062242142 WEST HOLLYWOOD, CALIFORNIA - MARCH 05: Andra Day attends, with FIJI Water, TIME Women of the Year 2024 at The West Hollywood EDITION on March 05, 2024 in West Hollywood, California. (Photo by Phillip Faraone/Getty Images for TIME)

Andra Day – Athena

Singer-actress Andra Day steps into the role of Athena, goddess of wisdom and Annabeth’s mother. “I can’t wait to bring her to life and work alongside such talented actors,” Day shared.

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2036337472 LOS ANGELES, CALIFORNIA - DECEMBER 03: Aleks Paunovic attends the world premiere of Disney+'s "Percy Jackson and the Olympians" Season 2 at Academy Museum of Motion Pictures on December 03, 2025 in Los Angeles, California. (Photo by Savion Washington/Getty Images)

Aleks Paunovic – Polyphemus

The ancient cyclops Polyphemus, blinded by Odysseus, now guards the Golden Fleece on his private island, played by Aleks Paunovic.

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1945318828 PARK CITY, UTAH - JANUARY 18: Rosemarie Dewitt attends "Out Of My Mind" Premiere during the 2024 Sundance Film Festival at Egyptian Theatre on January 18, 2024 in Park City, Utah. (Photo by Matt Winkelmeyer/Getty Images)

Rosemarie DeWitt – C.C.

DeWitt portrays C.C., a seemingly warm New Age guru with hidden depths, encountered by Percy and Annabeth on their quest.

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2249877444 LOS ANGELES, CALIFORNIA - DECEMBER 03: Beatrice Kitsos attends the world premiere of Disney+'s "Percy Jackson and the Olympians" Season 2 at Academy Museum of Motion Pictures on December 03, 2025 in Los Angeles, California. (Photo by Savion Washington/Getty Images)

Beatrice Kitsos – Alison Simms

Beatrice Kitsos is joining season two in a recurring role as Alison Simms, a Camp Half-Blood graduate living in the human world who aligns herself with Luke and Kronos’ cause.

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LOS ANGELES, CALIFORNIA - DECEMBER 03: Kevin Chacon attends the world premiere of Disney+'s "Percy Jackson and the Olympians" Season 2 at Academy Museum of Motion Pictures on December 03, 2025 in Los Angeles, California. (Photo by Savion Washington/Getty Images)

Kevin Chacon – Chris Rodriguez

Kevin Chacon also joins in a recurring role as Chris Rodriguez, another son of Hermes and part of Luke’s group, taking over the role from Andrew Alvarez in season one.

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