Suggestions by @thomasricard91

Paul Anderson

as Ben Gunn in Treasure Island

Score: +1

Will Poulter

as Captain Alexander Smollett in Treasure Island

Score: +1

Russell Crowe

as Billy Bones in Treasure Island

Score: +1

Stephen Fry

as Squire John Trelawney in Treasure Island

Score: +1

Benedict Cumberbatch

as Doctor David Livesey in Treasure Island

Score: +1

Idris Elba

as Long John Silver in Treasure Island

Score: +1

Amma Asante

as Director in Treasure Island

Score: +1

Joe Wright

as Director in Treasure Island

Score: +1

Taika Waititi

as Director in Treasure Island

Score: +1

Idris Elba

as Long John Silver in Treasure Island

Score: +2

Michael Smiley

as Argus Filch in Harry Potter (HBO Max Series)

Score: -5

Holt McCallany

as Harvey Bullock in Batman

Score: +4

Peter Dinklage

as Mad Hatter in Batman

Score: +1

Stephanie Beatriz

as Renee Montoya in Batman

Score: +4

Werner Herzog

as Mr. Freeze in Batman

Score: -1

Aldis Hodge

as Harvey Dent in Batman

Score: -1

Juno Temple

as Harley Quinn in Batman

Score: -6

Sami Bouajila

as Ra's Al Ghul in Batman

Score: -9

Jane Goldman

as Producer in Harry Potter

Score: +1

Steven Moffat

as Producer in Harry Potter

Score: +1