The Demigod Lineup: A Deep Dive Into The Percy Jackson And The Olympians Cast For Season 2

The world of Greek mythology and demigods is officially back! As of December 15, 2025, the highly anticipated second season of the Disney+ hit series, Percy Jackson and the Olympians, has recently premiered, bringing the beloved characters from Rick Riordan's second novel, The Sea of Monsters, to life. This season promises a darker, more complex journey for the iconic trio as they venture out of the safety of Camp Half-Blood to save a friend and the camp itself.

The success of the first season was largely credited to its faithful adaptation and, most importantly, the stellar casting of the core trio. With production wrapped and the new episodes now airing, fans are eager to know not just about the returning heroes, but also the crucial new faces joining the quest. From Percy's long-lost Cyclops half-brother to a major recast of a powerful Olympian god, here is your definitive guide to the full, updated cast lineup for Percy Jackson and the Olympians Season 2.

The Core Trio: Biography and Filmography

The heart of the series remains the three young actors who perfectly embody the spirit and chemistry of Percy, Annabeth, and Grover. Their performances were a cornerstone of the show's success, and all three are confirmed to return for the adaptation of The Sea of Monsters.

• The Chilling True Story 5 Key Facts About Richard Evonitz The Serial Killer Who Kidnapped Kara Robinson Chamberlain Xpjje

Walker Scobell as Percy Jackson

• Role: Percy Jackson (Son of Poseidon)
• Date of Birth: January 5, 2009
• Hometown: Virginia, United States
• Filmography Highlights: Scobell gained immediate recognition for his breakout role as the younger version of Ryan Reynolds' character in the Netflix sci-fi film The Adam Project (2022). He also starred as the lead in the superhero film Secret Headquarters (2022).
• Key Entity: The Adam Project, Secret Headquarters, Poseidon, Riptide.

Leah Sava Jeffries as Annabeth Chase

• Role: Annabeth Chase (Daughter of Athena)
• Hometown: Detroit, Michigan, United States
• Filmography Highlights: Jeffries began her career in commercials before landing her first major television role on the musical drama series Empire. She made her feature film debut in the Universal Pictures thriller Beast (2022), starring alongside Idris Elba.
• Key Entity: Athena, Empire, Beast, Wise Girl.

Aryan Simhadri as Grover Underwood

• Role: Grover Underwood (Satyr and Percy's Best Friend)
• Date of Birth: May 6, 2006
• Hometown: Ventura, California, United States
• Filmography Highlights: Simhadri is an Indian-American actor known for his work in the Disney Channel original movie Spin (2021), where he played the role of Rohan. He has also done extensive voice work in animated projects.
• Key Entity: Satyr, Spin, Pan, Lord of the Wild.

Major New Cast Members Joining The Sea of Monsters Quest

Season 2 introduces some of the most crucial characters from the Percy Jackson lore, essential for the quest to find the Golden Fleece. These new actors bring fresh energy and star power to the demigod world.

1. Daniel Diemer as Tyson (Percy's Cyclops Half-Brother)

One of the most anticipated new characters is Tyson, Percy's kind-hearted Cyclops half-brother. Daniel Diemer, known for his role in the Netflix series The Half of It, takes on the lovable and powerful role. Tyson is instrumental in the quest, providing both comic relief and immense strength, and his relationship with Percy forms a major emotional core of the season. His casting was a significant announcement for fans of the source material.

2. Tamara Smart as Thalia Grace

Thalia Grace, a character shrouded in mystery and tragedy from the first book, will have a major presence in The Sea of Monsters. Tamara Smart, who has starred in *Artemis Fowl* and *The Baby-Sitters Club*, has been cast as the powerful daughter of Zeus. Her backstory and ultimate fate are central to the protection of Camp Half-Blood, and her appearance is a pivotal moment for the series' mythology.

• 7 Shocking Things Jessica Capshaw Revealed About Growing Up With Steven Spielberg As Her Stepfather 892ho

Olympian Recasts and Guest Stars: The Gods of Olympus

The Olympian gods continue to play a direct role in the demigods' lives, and Season 2 sees a major recasting, as well as the introduction of new divine figures.

3. Courtney B. Vance as Zeus

Following the passing of the original Zeus actor, the late Lance Reddick, the role of the King of the Gods has been taken over by veteran actor Courtney B. Vance. Vance is a highly respected actor, known for his Emmy-winning performance in The People v. O. J. Simpson: American Crime Story. His presence ensures the powerful, intimidating nature of Zeus remains a key element of the show's pantheon.

4. Andra Day as Athena

The formidable goddess of wisdom and Annabeth's mother, Athena, will be played by Grammy and Golden Globe winner Andra Day. Day, celebrated for her Oscar-nominated performance in The United States vs. Billie Holiday, brings a commanding presence to the Olympian who often has a strained relationship with the children of Poseidon. Her casting adds significant star power to the recurring Olympian roles.

• The One Where They Tanked Jokes 15 Shocking New Secrets From The Friends Tv Show Behind The Scenes G9zdh

5. Sandra Bernhard, Kristen Schaal, and Margaret Cho as The Gray Sisters

In a move that promises comedic and mythological genius, the three Gray Sisters—the fate-sharing, eye-passing, taxi-driving oracles—will be played by an iconic trio of comedians: Sandra Bernhard, Kristen Schaal, and Margaret Cho. These characters are central to guiding Percy on his quest, and their casting suggests a blend of humor and necessary exposition.

The Expanding Universe: Returning Cast and Key Entities

While the focus is on the new quest, the returning adult and supporting cast members are essential for grounding the world of Camp Half-Blood and the Olympians. The show continues to be executive produced and heavily guided by author Rick Riordan and Jonathon E. Steinberg, ensuring its continued faithfulness to the source material.

Returning Gods and Mentors

The show's commitment to a star-studded cast of gods and mentors remains strong. Fans can expect to see the return of key figures from Season 1, including:

• Glynn Turman as Chiron (The Centaur and Activities Director of Camp Half-Blood)
• Jason Mantzoukas as Dionysus/Mr. D (The God of Wine and Camp Director)
• Toby Stephens as Poseidon (God of the Sea and Percy's Father)
• Jessica Parker Kennedy as Medusa (Though her role may be limited to flashbacks or new mythological encounters)

The Road Ahead: The Golden Fleece and The Sea of Monsters

Season 2, based on The Sea of Monsters, sees the demigods embark on a perilous voyage into the Bermuda Triangle, which is the mythological Sea of Monsters. Their primary goal is to retrieve the Golden Fleece, the only magical item capable of healing Thalia's pine tree, the magical border protecting Camp Half-Blood. The introduction of Tyson and Thalia Grace, along with the dramatic recast of Zeus, signals a season filled with high-stakes adventure, deeper explorations of family ties, and a more expansive view of the Greek mythological world. The production for this highly anticipated sophomore season wrapped in early 2025, allowing for the December 2025 premiere date.

With a cast that perfectly blends established talent and rising young stars, Percy Jackson and the Olympians Season 2 is poised to deepen its connection with the fandom and solidify its place as one of the definitive fantasy adaptations of the decade. The chemistry of the core trio, combined with the exciting new additions like Tyson and the comedic genius of The Gray Sisters, guarantees a thrilling ride into the heart of the Sea of Monsters.