- Annabeth Chase - Ginny Gardner
- Bianca di Angelo - Isabelle Fuhrman
- Calypso - Erin Moriarty
- Charles Beckendorf - Nadji Jeter
- Chirone - Pierce Brosnan/Gary Oldman
- Clarisse La Rue - Lindsey Shaw
- Drew Tanaka - Brenda Song
- Ella the Harpy - Tosha McCarter
- Ethan Nakamura - Ryan Potter
- Frank Zhang - William Bahlendorf
- Gleeson Hedge - John C. Riley
- Grover Underwood - Nick Palatas
- Hazel Levesque - Antonia Thomas/Jessica Sula
- Hylla Avila Ramirez-Arellano - ??
- Jason Grace - Alexander Ludwig/Lucas Till/Bertie Gilbert
- Leo Valdez - Kassio Gama
- Luke Castellan - Jake Abel
- Nico di Angelo - Skandar Keynes/Jakub Gierszak/Dylan Schmid
- Octavian - Dane DeHaan
- Perseus 'Percy' Jackson - Jordy Baan/David Henrie
- Piper McLean - Kelsey Chow
- Rachel Elizabeth Dare - Jane Levy
- Reyna Avila Ramirez-Arellano - Adria Arjuna/Tanaya Beatty/Nicole Munoz
- Silena Beauregard - Zoey Deutch/Emily Rudd
- Thalia Grace - Kaya Scodelario
- Travis and Connor Stoll - Jack and Finn Harries
- Tyson - Douglas Smith
- Will Solace - ??
- Zoe Nightshade - Nina Dobrev
jun 2 2017 ∞
dec 10 2020 +