Suggestions by @ashleycastellan

Kaya Scodelario

as Thalia in Trials of Apollo

Danny Griffin

as Will in Trials of Apollo

Pedro Henrique

as Leo in Trials of Apollo

Jake T. Austin

as Leo in Trials of Apollo

Indiana Evans

as Calypso in Trials of Apollo

Emilia Jones

as Calypso in Trials of Apollo

Marie Avgeropoulos

as Reyna in Trials of Apollo

Kaya Scodelario

as Reyna in Trials of Apollo

Levi Miller

as Apollo/Lester in Trials of Apollo

Annalise Basso

as Rachel Dare in Trials of Apollo

Sadie Sink

as Rachel Dare in Trials of Apollo

Danny Griffin

as Jason (RIP) in Trials of Apollo

Amandla Stenberg

as Hazel in Trials of Apollo

Asher Angel

as Percy in Trials of Apollo

Paris Bishop

as Piper in Trials of Apollo

Kelsey Asbille

as Piper in Trials of Apollo

Madison Pettis

as Hazel in Trials of Apollo

Tessa Thompson

as Piper Mclean in Heroes Of Olympus

Vanessa Hudgens

as Piper Mclean in Heroes Of Olympus

Mackenzie Foy

as Zoë Nightshade in Heroes Of Olympus