Suggestions by @adamatc

Richard Pryor

as Chief of Police in Wonka (1983)

Score: 0

Aileen Quinn

as Noodle in Wonka (1983)

Score: -1

Robin Williams

as Willy Wonka in Wonka (1983)

Score: +3

Dean Stockwell

as Carl Showalter in Fargo (1987)

Score: +4

Julie Kavner

as Marge Gunderson in Fargo (1987)

Score: +4

Jeremy Allen White

as Gene Wilder in It's Good To Be The King

Score: +4

Jeremy Allen White

as Gene Wilder in Richard Pryor

Score: +4

James Coburn

as William Hale in Killers Of The Flower Moon (1993)

Score: +6

Richard Pryor

as Jules Winnfield in Pulp Fiction (1984)

Score: +7

Gene Wilder

as Vincent Vega in Pulp Fiction (1984)

Score: +3

Josh Rivera

as Vincent D'Onofrio in Stanley Kubrick Biopic

Score: +2

Ruby Cruz

as Demi Moore in The Brat Pack

Score: +2

Ruby Cruz

as Demi Moore in Biopics for famous women

Score: +2

Ruby Cruz

as Demi Moore in Brat Pack Biopic

Score: +2

Ruby Cruz

as Demi Moore in Swayze

Score: +3

Ruby Cruz

as Demi Moore in The Brat Pack

Score: +4

Ruby Cruz

as Demi Guynes in Swayze Spirit: The Patrick Swayze Story

Score: +3

Ruby Cruz

as Demi Moore in Actress

Score: +1

Ruby Cruz

as Demi Moore in Don't you forget about me

Score: +3

Ruby Cruz

as Demi Guynes in Unbreakable: The Demi Moore Story

Score: +5