Suggestions by @percystiles

Virginia Gardner

as Annabeth Chase in Heroes Of Olympus

Score: -22

Virginia Gardner

as Amanda Monk in All The Bright Places

Score: -2

Freya Mavor

as Annabeth Chase in Heroes Of Olympus

Score: -26

Justice Smith

as Theodore Finch in All The Bright Places

Score: -9

Elle Fanning

as Violet Markey in All The Bright Places

Score: +11

Melissa Ponzio

as Sally Jackson in Heroes Of Olympus

Score: +13

Skyler Samuels

as Annabeth Chase in Heroes Of Olympus

Score: -14

Dylan O'Brien

as Percy Jackson in Heroes Of Olympus

Score: -29

Skyler Samuels

as Annabeth Chase in Heroes of Olympus: The Lost Hero

Score: +3

Dylan O'Brien

as Percy Jackson in Heroes of Olympus: The Son of Neptune

Score: -2

Skyler Samuels

as Annabeth Chase in Heroes of Olympus: The Mark of Athena

Score: +3

Dylan O'Brien

as Percy Jackson in Heroes of Olympus: The Mark of Athena

Score: -2

Kelsey Asbille

as Piper McLean in Heroes of Olympus: The Blood of Olympus

Score: -3

Jake T. Austin

as Leo Valdez in Heroes of Olympus: The Blood of Olympus

Score: -1

Skandar Keynes

as Nico di Angelo in Heroes of Olympus: The Blood of Olympus

Score: +2

Lucas Till

as Jason Grace in Heroes of Olympus: The Blood of Olympus

Score: +1

Skyler Samuels

as Annabeth Chase in Heroes of Olympus: The Blood of Olympus

Score: +2

Dylan O'Brien

as Percy Jackson in Heroes of Olympus: The Blood of Olympus

Score: -1

Skyler Samuels

as Annabeth Chase in Percy Jackson

Score: -1

Dylan O'Brien

as Percy Jackson in Heroes of Olympus: The House of Hades

Score: -8