Suggestions by @danielbecker

Seth Rudetsky

as Radagast in The Lord of the Rings: The Musical

Score: +1

Damson Idris

as Kravitz in The Adventure Zone: Balance

Score: +1

Idris Elba

as Witch King in Black Lord of the Rings

Score: +1

Giancarlo Esposito

as Elrond in Black Lord of the Rings

Score: +1

Norbert Leo Butz

as Gimli in The Lord of the Rings: The Musical

Score: +1

Megan Hilty

as Eowyn in The Lord of the Rings: The Musical

Score: +1

Harvey Fierstein

as Treebeard in The Lord of the Rings: The Musical

Score: +1

Jonathan Groff

as Merry in The Lord of the Rings: The Musical

Score: +1

Jonathan Groff

as Legolas in The Lord of the Rings: The Musical

Score: +1

Regina King

as Lucretia in The Adventure Zone: Balance

Score: +1

Alan Tudyk

as Magic Brian in The Adventure Zone: Balance

Score: +1

Indya Moore

as Lup in The Adventure Zone: Balance

Score: +2

Michaela Jaé Rodriguez

as Lup in The Adventure Zone: Balance

Score: +1

Regina King

as Carey in The Adventure Zone: Balance

Score: +1

Lonnie Chavis

as Angus in The Adventure Zone: Balance

Score: +1

Stephen McKinley Henderson

as Merle in The Adventure Zone: Balance

Score: +1

Chris Hemsworth

as Magnus in The Adventure Zone: Balance

Score: +1

Harvey Guillén

as Taako in The Adventure Zone: Balance

Score: -1

Griffin McElroy

as Garfield in The Adventure Zone: Balance

Score: -1

Benj Pasek

as Composer 2 in The Lord of the Rings: The Musical

Score: +1