Suggestions by @vince

Matthew Illesley

as Ron Weasley in Harry Potter TV Series

Score: +3

Toby Woolf

as Harry Potter in Harry Potter TV Series

Score: +5

Archie Yates

as Harry Potter in Harry Potter TV Series

Score: 0

Amie Donald

as Fiona Crane in Long Lost

Score: +2

Ariana Greenblatt

as Fiona Crane in Long Lost

Score: +1

Sophia Lillis

as Sarah in The Eye of Minds

Score: +1

Ralph Fiennes

as Gunner Skale in The Eye of Minds

Score: +1

Anne Hathaway

as Agent Weber in The Eye of Minds

Score: +1

Emma Myers

as Trina in The Kill Order

Score: +6

Flora Li Thiemann

as Livia Cardew in The Ballad of Songbirds and Snakes

Score: +1

Fionnula Flanagan

as Coriolanus' Grandmother in The Ballad of Songbirds and Snakes

Score: 0

Charles Dance

as Kaine in The Eye of Minds

Score: +1

Jodelle Ferland

as Marnie in Pokémon: The Complete Saga

Score: 0

Jodelle Ferland

as Marnie in Pokémon (All 8 generations)

Score: +1

Jodelle Ferland

as Marnie in Pokemon: Sword and Shield

Score: +1

Frances Fisher

as Dr. Volumnia Gaul in The Ballad of Songbirds and Snakes

Score: 0

Finn Wolfhard

as Bryson in The Eye of Minds

Score: +1

Tatiana Maslany

as Tanya in The Eye of Minds

Score: +1

Elizabeth Banks

as Ronika in The Eye of Minds

Score: +1

Eva Green

as Ronika in The Eye of Minds

Score: +1