Suggestions by @zanderdziedzic

Jesse Eisenberg

as The Sixth Doctor in American Doctor Who

Score: +1

Michael Shannon

as The Ainley Master in American Doctor Who

Score: +1

Warwick Davis

as Appa Ali Apsa in Green Lantern Corps

Score: +1

David Ramsey

as John Diggle (Elseworlds) in Green Lantern Corps

Score: +1

Ryan Reynolds

as Hal Jordan (Elseworlds) in Green Lantern Corps

Score: +1

Ana de Armas

as Jessica Cruz in Green Lantern Corps

Score: +1

Timothée Chalamet

as Kyle Rayner in Green Lantern Corps

Score: +1

Brendan Fraser

as Guy Gardner in Green Lantern Corps

Score: +1

Michael Dorn

as Atrocitus in Green Lantern Corps

Score: +1

Will Smith

as John Stewart in Green Lantern Corps

Score: +1

Nathan Fillion

as Hal Jordan in Green Lantern Corps

Score: +1

Anson Mount

as Booster Gold in Dcu's James Gunn

Score: -2

Anson Mount

as Michael Jon Carter (Booster Gold) in All Superheroes and Villains (DC, Marvel, & Dark Horse Comics)

Score: +1

Kevin Costner

as Alistair Gordon Lethbridge-Stewart in American Doctor Who

Score: +1

Billy West

as K-9 in American Doctor Who

Score: +1

Finn Wolfhard

as The Seventh Doctor in American Doctor Who

Score: +1

Jim Cummings

as Cybermen in American Doctor Who

Score: +1

Jim Cummings

as Daleks in American Doctor Who

Score: +1

James Franco

as Ian Chesterton in American Doctor Who

Score: +1

Simon Helberg

as The Fourth Doctor in American Doctor Who

Score: +1