Suggestions by @duckrogers

Michael Keaton

as Thomas Wayne in Batman Cinematic Universe

Score: +2

Alan Menken

as Composer in The Little Mermaid

Score: +1

Jennifer Kent

as Director in The Little Mermaid

Score: -1

Emily Deschanel

as Carlotta in The Little Mermaid

Score: -1

Sean Bean

as Grimsby in The Little Mermaid

Score: -1

Alice Cooper

as King Triton in The Little Mermaid

Score: -2

Jeremy Maguire

as Flounder in The Little Mermaid

Score: 0

Joshua Henry

as Sebastian in The Little Mermaid

Score: -2

Lady Gaga

as Ursula / Vanessa in The Little Mermaid

Score: -2

Ryan McCartan

as Prince Eric in The Little Mermaid

Score: -3

Mallory Bechtel

as Princess Ariel in The Little Mermaid

Score: -3

Doug Jones

as Tomar Re in Green Lantern Corps (2020)

Score: +1

Bruce Willis

as Sinestro in Green Lantern Corps (2020)

Score: +2

LaKeith Stanfield

as Jon Stewart in Green Lantern Corps (2020)

Score: +1

Timothée Chalamet

as Hermes in Mythic

Score: 0

Max Thieriot

as Quincey Harker in The Brides of Dracula

Score: 0

Rammstein

as Composer in Frankenstein's Legacy

Score: +1

Guillermo del Toro

as Producer in Frankenstein's Legacy

Score: 0