Suggestions by @boredomcreator

Archie Yates

as Young Peter in The Marauders

Score: +1

Momona Tamada

as Toph Beifong in Avatar: the Last Airbender

Score: +3

Cameron Seely

as Ramandu's Daughter in The Chronicles of Narnia Series (2022~)

Score: +2

Shay Rudolph

as Ramandu's Daughter in The Chronicles of Narnia Series (2022~)

Score: +2

Dixie Egerickx

as Susan Pevensie in The Chronicles of Narnia Series (2022~)

Score: -1

Benjamin Evan Ainsworth

as Diggory Kirke in The Chronicles of Narnia Series (2022~)

Score: +3

Ever Anderson

as Bellatrix Black Lestrange in All The Young Dudes

Score: -16

Dixie Egerickx

as Lily Evans Potter in All The Young Dudes

Score: -9

Anton Starkman

as Remus Lupin in All The Young Dudes

Score: -21

Archie Yates

as Peter Pettigrew in All The Young Dudes

Score: -5