Suggestions by @abcdefghijk

Tom Holland

as Pollux in Percy Jackson & the Olympians

Score: +1

Tom Holland

as Castor in Percy Jackson & the Olympians

Score: +2

Tom Holland

as Jake Mason in Percy Jackson & the Olympians

Score: +2

Zac Efron

as Lee Fletcher in Percy Jackson & the Olympians

Score: -6

Benedict Cumberbatch

as Jivan Shi in Batman: under the hood

Score: 0

Lupita Nyong'o

as Onyx Adams in Batman: under the hood

Score: +1

Michael Fassbender

as Amazo in Batman: under the hood

Score: +1

Viggo Mortensen

as Werner Vertigo in Batman: under the hood

Score: 0

Tom Hardy

as Clark Kent in Batman: under the hood

Score: -1

Amanda Seyfried

as Harleen Quinnzel in Batman: under the hood

Score: 0

Idris Elba

as Lucius Fox in Batman: under the hood

Score: +1

Dacre Montgomery

as Robin in Batman: under the hood

Score: +2

Jake Gyllenhaal

as Oliver Queen in Batman: under the hood

Score: +1

Hugh Jackman

as Slade Wilson in Batman: under the hood

Score: +2

Tom Holland

as Dick Grayson in Batman: under the hood

Score: -1

Dacre Montgomery

as Jason Todd in Batman: under the hood

Score: +3

Hugh Jackman

as Roman Sionis in Batman: under the hood

Score: -1

Ana de Armas

as Zatanna Zatara in Batman: under the hood

Score: +4

Idris Elba

as Jason Blood in Batman: under the hood

Score: 0

Jon Hamm

as Bruce Wayne in Batman: under the hood

Score: +3