Suggestions by @johnhomer

Bruce Greenwood

as Thomas Wayne in Batman

Score: +1

Sam Worthington

as Jack Hawksmoor in The Authority

Score: +1

Karl Urban

as Midnighter in The Authority

Score: +1

Henry Cavill

as Apollo in The Authority

Score: +1

Willa Holland

as The Engineer in The Authority

Score: +1

Karen Fukuhara

as Swift in The Authority

Score: +2

Austin Butler

as The Doctor in The Authority

Score: +1

Karl Urban

as Jack Hawksmoor in The Authority

Score: +1

Emelia Clarke

as Jenny Sparks in The Authority

Score: +1

Jodie Comer

as Jenny Sparks in The Authority

Score: -1

Margot Robbie

as Invisible Woman in Fantastic 4

Score: +2

Andy Serkis

as Lord Voldemort in Harry Potter Recast

Score: +1

Michelle Gomez

as Minerva McGonnegal in Harry Potter Recast

Score: +3

Michelle Gomez

as Minerva McGonnegal in Harry Potter Recast

Score: +1

Michelle Monaghan

as Minerva McGonnegal in Harry Potter Recast

Score: -1

Nick Frost

as Rubeus Hagrid in Harry Potter Recast

Score: +3

Jared Harris

as Albus Dumbledore in Harry Potter Recast

Score: +3

Adam Driver

as Severus Snape in Harry Potter Recast

Score: +3

T'Nia Miller

as Storm in MCU: X-Men 2 - Giant Sized

Score: +1

Andrew Scott

as Mastermind in MCU: X-MEN 1 - First Class

Score: +1