Suggestions by @comodin

RaeLynn Bratten

as Ava Starr in Ant-Man Season 2 (2009)

Score: +1

Adam Driver

as Student Snape in Harry Potter And The Order Of The Phoenix 2007

Score: +1

Alan Rickman

as Profesor Snape in Harry Potter And The Order Of The Phoenix 2007

Score: +1

Natalie Dormer

as Bellatrix Lestrange in Harry Potter And The Goblet Of Fire 2005

Score: +1

Johnny Depp

as Jack Sparrow in Pirates Of The Caribbean: Dead Men's Chest 2006

Score: +1

Angelina Jolie

as The Witch in CORALINE

Score: 0

Robert Downey Jr.

as Ghost of Christmas Future in Disney's Christmas Carol

Score: +1

Andrew Garfield

as Remus Lupin in The Marauders Season 1

Score: +1

Natalie Dormer

as Bellatrix Black in The Marauders Season 1

Score: +1

Jamie Bell

as Peter Pettigrew in The Marauders Season 1

Score: +1

Emma Dumont

as Gifted (2024) in What if the MCU Had Opposite rights?

Score: +1

Tom Cruise

as Fantastic Four: Dimensional Portals (2022) in What if the MCU Had Opposite rights?

Score: +1

Dafne Keen

as X-Men: Weapon X Legacy (2021) in What if the MCU Had Opposite rights?

Score: +1

Hailee Steinfeld

as Batgirl in Marvel and dc characters: actor swap

Score: +1

Robert Maillet

as Present Day Hagrid in The Marauders Season 1

Score: +1

Robbie Coltrane

as Future Hagrid in The Marauders Season 1

Score: +1

Ben Barnes

as Sirius Black in The Marauders Season 1

Score: +1

Wesley Snipes

as Blade (2015) in What if the MCU Had Opposite rights?

Score: +1

Miles Brown

as Miles Morales in Spider-Man 5 Legacy (2021)

Score: +1

Gary Oldman

as Narartor in The marauders era

Score: +1