Suggestions by @daeronsand

Owen Cooper

as Edwin in Hogwarts: Origins

Score: +1

Olivia Colman

as Helga Hufflepuff in Hogwarts: Origins

Score: +1

Frankie Corio

as Helena Ravenclaw in Hogwarts: Origins

Score: +1

Dexter Sol Ansell

as Merlin in Hogwarts: Origins

Score: +1

Jonathan Rhys Meyers

as Salazar Slytherin in Hogwarts: Origins

Score: +1

Olivia Colman

as Helena Ravenclaw in Hogwarts: Origins

Score: -1

Laura Fraser

as Rowena Ravenclaw in Hogwarts: Origins

Score: +1

Damian Lewis

as Godric Gryffindor in Hogwarts: Origins

Score: +1

Paddy Considine

as King Viserys I in Fire and Blood

Score: 0

Freddie Highmore

as King Jaehaerys II in Fire and Blood

Score: +1

Sam Spruell

as King Maekar in Fire and Blood

Score: +1

Will Poulter

as King Aegon III in Fire and Blood

Score: 0

Roman Griffin Davis

as King Daeron I in Fire and Blood

Score: +3

Felix Jamieson

as King Daeron I in Fire and Blood

Score: -4

Charlie Hunnam

as King Aegon I in Fire and Blood

Score: 0

Christopher Eccleston

as King Richard Lionheart in Robin Hood (2024)

Score: +2

Tom Felton

as Alan a Dale in Robin Hood (2024)

Score: +2

Olivia Colman

as Lady Kluck in Robin Hood (2024)

Score: +2

Lenny Rush

as Will Scarlett in Robin Hood (2024)

Score: +2

David Tennant

as Prince John in Robin Hood (2024)

Score: +2