Suggestions by @danielbecker

Ted Danson

as Barliman Butterbur in Daniel's Lord of the Rings

Score: +1

Alfred Enoch

as Elladan & Elrohir in Daniel's Lord of the Rings

Score: +1

Giancarlo Esposito

as Sauron in Black Lord of the Rings

Score: +2

Giancarlo Esposito

as Witch King in Black Lord of the Rings

Score: 0

Donald Glover

as Faramir in Daniel's Lord of the Rings

Score: +1

Lonnie Chavis

as Bergil in Daniel's Lord of the Rings

Score: +1

Lonnie Chavis

as Bergil in Black Lord of the Rings

Score: +1

Seth Carr

as Bergil in Black Lord of the Rings

Score: +1

Keith David

as Mouth of Sauron in Black Lord of the Rings

Score: +2

Alfred Enoch

as Pippin in Black Lord of the Rings

Score: +1

Donald Glover

as Faramir in Black Lord of the Rings

Score: +1

O'Shea Jackson Jr.

as Fredegar Bolger in Daniel's Lord of the Rings

Score: +1

O'Shea Jackson Jr.

as Fredegar Bolger in Daniel's Lord of the Rings

Score: +1

Stephen McKinley Henderson

as Barliman Butterbur in Daniel's Lord of the Rings

Score: +1

Tilda Swinton

as Sauron in Daniel's Lord of the Rings

Score: +1

Keith David

as Mouth of Sauron in Daniel's Lord of the Rings

Score: +1

Seth Carr

as Bergil in Daniel's Lord of the Rings

Score: +1

Manny Jacinto

as Elladan & Elrohir in Daniel's Lord of the Rings

Score: +1

Rihanna

as Goldberry in Daniel's Lord of the Rings

Score: +1

James Cosmo

as Gamling in Daniel's Lord of the Rings

Score: +1