Walker Scobell

Percy Jackson

Leah Sava Jeffries

Annabeth Chase

Aryan Simhadri

Grover Underwood

Charlie Bushnell

Luke Castellan

Dior Goodjohn

Clarisse La Rue

Daniel Diemer

Tyson

Megan Mullally

Mrs. Dodds / Alecto

Virginia Kull

Sally Jackson

Timm Sharp

Gabe Ugliano

Hiro Kanagawa

Headmaster

Azriel Dalman

Young Percy Jackson

Olivea Morton

Nancy Bobofit

Simon Chin

Super (Eddie)

Manoj Sood

Principal

Athan Irinakis

Martin

Billy Christos Jr.

Snickering Kid #1

Malcolm Anthony Clarke

Snickering Kid #2

Drako Cheng

Bubble Gum Kid

Adam John Patrick Gillese

Kid #2

Mateo Deuma

Kid #3

Peyton Amelia Feltham

Nancy's Friend #1

Valencia Budijanto

Nancy's Friend #2

Jason Mantzoukas

Mr. D / Dionysus

Jason Gray-Stanford

Maron

Kathleen Duborg

Helena

Threnody Tsai

Sarah

Garfield Wilson

Leneus

George Moran

Red Team Bully

Jessica Parker Kennedy

Medusa

Suzanne Cryer

Echidna

Adam Copeland

Ares

Timothy Omundson

Hephaestus

Jay Duplass

Hades

Lin-Manuel Miranda

Hermes (uncredited)

Toby Stephens

Poseidon

Lance Reddick

Zeus

Sara Southey

Tisiphone

Jennifer Shirley

Oracle

Brooklyn Scotland

Samara

Darla Fay

Cashier

Ryan Cowie

Chaperone

Alessandro Juliani

Transit Cop #1

Ely Jackson

Transit Cop #2

Gayle Yamamoto

Mom

Winson Won

Dad

Julia Lee

Child #1

Nick Boraine

Voice in Dream (voice)

Joshua Lee

Child #2

Joyce Robbins

Fate #1

La Nein Harrison

Fate #2

Cindy Piper

Fate #3

Ted Dykstra

Augustus

Jelena Milinkovic

Nereid

Glynn Turman

Mr. Brunner / Chiron

Julian Richings

Procrustes

Andrew Alvarez

Theo

Travis Woloshyn

Charon

Andrew McIlroy

Administrator

Jenaya Ross

Asphodelian

Bola Omodara

Security Guard

David Beairsto

Social Services Counselor

Timothy Simons

Tantalus

Kristen Schaal

Tempest

Margaret Cho

Wasp

Sandra Bernhard

Anger

Beatrice Kitsos

Alison Simms

Kevin Chacon

Chris Rodriguez

Sage Linder

Bronte

Heather Feeney

The Oracle

Miles Merry

Blockbuster Mitch

Aiden Howard

Aidan

Adrian Hough

Carrington

Kurt Ostlund

Thorvald

Sean Yves Lessard

Pierre

Andre Roshkov

Boris

Emmanuel Akpoviroro

Canthus

Mark Gibbon

Chet Jr.

Ryan Beil

Assistant Satyr

Ken Godmere

Meriwether Teacher

Brady Tate

Meriwether Student

Adam Swain

Ellis

Aleks Paunovic

Polyphemus

Andra Day

Athena

Andrew Kavadas

Blackbeard

Camille Mitchell

Zadie

Cassandra Ebner

Petra

Courtney B. Vance

Zeus

Dan Payne

Marrow Sucker

Daniel Cudmore

Skull Eater

Jasmine Vega

Hylla

John Prowse

Harbor Master

Kiarra Hamagami Goldberg

June

Mathew Yanagiya

Dean

Olive Abercrombie

Bianca Di Angelo

Olly Atkins

Auggie

Paul Cheng

Brain Biter

Rosemarie DeWitt

C.C. / Circe

Ryan Handley

Stavros

Tamara Smart

Thalia Grace