Suggestions by @c0nanandsirius4life

Owen Atlas

as Sirius Black (3-4th year) in All the Young Dudes

Score: 0

Benson Boone

as James Potter (5-6th year) in All the Young Dudes

Score: +1

Louis Partridge

as Sirius Black (5-6th year) in All the Young Dudes

Score: +3

Louis Garrel

as Severus Snape (&th year and after Hogwarts) in All the Young Dudes

Score: 0

Timmothee Chalemet

as Regulus Black (7th year and after Hogwarts) in All the Young Dudes

Score: -1

Alexandra Shipp

as Mary Macdonald (7th year and after Hogwarts) in All the Young Dudes

Score: +1

Sophie Skelton

as Lily Evans (7th year and after Hogwarts) in All the Young Dudes

Score: +2

Dane DeHaan

as Peter Pettigrew (7th year and after hogwarts) in All the Young Dudes

Score: +2

Aaron Taylor-Johnson

as James Potter (7th year and after Hogwarts) in All the Young Dudes

Score: +1

Ben Barnes

as Sirius Black (7th year and after Hogwarts) in All the Young Dudes

Score: +2

Andrew Garfield

as Remus Lupin (7 year and after hogwarts) in All the Young Dudes

Score: +2