Suggestions by @skuldocreynolds

Derek Landy

as Gordon Edgley in Skulduggery Pleasant

Score: +25

John Barrowman

as Billy-Ray Sanguine in Skulduggery Pleasant

Score: -5

Simon Pegg

as Vaurien Scapegrace in Skulduggery Pleasant

Score: +22

Stephen Fry

as Kenspeckle Grouse in Skulduggery Pleasant

Score: +6

Idris Elba

as Ghastly Bespoke in Skulduggery Pleasant

Score: +23

Terry Crews

as The Thing in Fantastic Four

Score: +1