Suggestions by @iskelaofthenight

Shia LaBeouf

as Scooter in Tales From the Borderlands

Score: +1

Jamie Blackley

as Bartemius Crouch Jr. in The Marauders

Score: +1

Oliver Dale

as Gideon Prewett in The Marauders

Score: 0

Peabo Powell

as Fabian Prewett in The Marauders

Score: 0

Cate Blanchett

as Druella Black in The Marauders

Score: +2

Ioan Gruffudd

as Cygnus Black in The Marauders

Score: +1

Colin Firth

as Orion Black in The Marauders

Score: +1

Eva Green

as Walburga Black in The Marauders

Score: +10

Gerard Butler

as Fleamont Potter in The Marauders

Score: +2

Rose Byrne

as Euphemia Potter in The Marauders

Score: +3

Nathalie Emmanuel

as Dorcas Meadowes in The Marauders

Score: +1

Jhené Aiko

as Clio in Hercules

Score: +2

Kathy Bates

as Atropos in Hercules

Score: 0

Eva Green

as Clotho in Hercules

Score: +1

Meryl Streep

as Lachesis in Hercules

Score: +1

Beyoncé

as Calliope in Hercules

Score: +2

Alicia Keys

as Melpomene in Hercules

Score: +1

Jennifer Hudson

as Terpsichore in Hercules

Score: +1

Amber Riley

as Thalia in Hercules

Score: +1

Sorcha Groundsell

as Marlene McKinnon in The Marauders

Score: +3