Suggestions by @harrypotter4ever

Daniel Radcliffe

as Percy Jackson in Heroes of Olympus

Score: -1

Zac Efron

as Percy Jackson in Heroes of Olympus

Score: -1

Jaeden Martell

as Percy Jackson in Heroes of Olympus

Score: -1

Andrew Garfield

as Percy Jackson in Heroes of Olympus

Score: -1

Tom Holland

as Percy Jackson in Heroes of Olympus

Score: +1

Naomi Scott

as Clarisse La Rue in Heroes of Olympus

Score: -1

Hailee Steinfeld

as Clarisse La Rue in Heroes of Olympus

Score: -1

Joey King

as Clarisse La Rue in Heroes of Olympus

Score: -1

Luke Evans

as Zeus in Heroes of Olympus

Score: +1

Matthew McConaughey

as Zeus in Heroes of Olympus

Score: +1

Willem Dafoe

as Zeus in Heroes of Olympus

Score: -1

Daniel Craig

as Zeus in Heroes of Olympus

Score: +1

Gary Oldman

as Zeus in Heroes of Olympus

Score: -1

Hugh Jackman

as Zeus in Heroes of Olympus

Score: +1

Ralph Fiennes

as Zeus in Heroes of Olympus

Score: +1

Robert Downey Jr.

as Poseidon in Heroes of Olympus

Score: -1

Jake Gyllenhaal

as Poseidon in Heroes of Olympus

Score: -1

Chris Pratt

as Poseidon in Heroes of Olympus

Score: -1

Madison Iseman

as Annabeth Chase in Heroes of Olympus

Score: -1

Dove Cameron

as Annabeth Chase in Heroes of Olympus

Score: -1