Suggestions by @ariazel

Jaeden Martell

as Percy Jackson in Percy Jackson

Score: +1

Montana Jordan

as Percy Jackson in Percy Jackson

Score: +1

Michael Fassbender

as Hades in Percy Jackson

Score: +1

Margot Robbie

as Athena in Percy Jackson

Score: +1

Rock Anthony

as Arthur Weasley in Harry Potter Marauders era

Score: +1

Jo Woodcock

as Molly Prewett in Harry Potter Marauders era

Score: -1

Haley Bennett

as Molly Prewett in Harry Potter Marauders era

Score: -1

Emilia Clarke

as Emmeline Vance in Harry Potter Marauders era

Score: +1

Jim Sturgess

as Frank Longbottom in Harry Potter Marauders era

Score: +1

Sofia Bryant

as Mary MacDonald in Harry Potter Marauders era

Score: +1

Carey Mulligan

as Alice Longbottom in Harry Potter Marauders era

Score: +2

Tom Hughes

as Tom Riddle in Harry Potter Marauders era

Score: +1

Alicia Vikander

as Marlene McKinnon in Harry Potter Marauders era

Score: +2

Sophie Skelton

as Lily Evans in Harry Potter Marauders era

Score: +2

Dane DeHaan

as Peter Pettigrew in Harry Potter Marauders era

Score: +2

Michelle Pfeiffer

as Druella Black in Harry Potter Marauders era

Score: +4

Timothée Chalamet

as Regulus Black in Harry Potter Marauders era

Score: +1

Adam Driver

as Severus Piton in Harry Potter Marauders era

Score: +1

Katie McGrath

as Bellatrix Black in Harry Potter Marauders era

Score: +2

Cody Fern

as Lucius Malfoy in Harry Potter Marauders era

Score: +1