Suggestions by @webber56789

Sean Astin

as Samwise Gamgee in Hobbit/LotR

Score: +1

Elijah Wood

as Frodo Baggins in Hobbit/LotR

Score: +1

Steve Blum

as Beorn in Hobbit/LotR

Score: +1

Benedict Cumberbatch

as Smaug in Hobbit/LotR

Score: +3

Noshir Dalal

as Bard in Hobbit/LotR

Score: +1

Fred Tatasciore

as Bombur in Hobbit/LotR

Score: +1

Jason Spisak

as Bofur in Hobbit/LotR

Score: +1

William Salyers

as Dori in Hobbit/LotR

Score: +1

Karan Soni

as Ori in Hobbit/LotR

Score: +1

Hank Azaria

as Oin in Hobbit/LotR

Score: +1

Cate Blanchett

as Galadriel in Hobbit/LotR

Score: +2

Dave Fennoy

as Sauron in Hobbit/LotR

Score: +1

Terrence 'T.C.' Carson

as Sauron in Hobbit/LotR

Score: +1

Christopher Judge

as Sauron in Hobbit/LotR

Score: +1

Idris Elba

as Sauron in Hobbit/LotR

Score: +2

Keith David

as Sauron in Hobbit/LotR

Score: +2

Colman Domingo

as Sauron in Hobbit/LotR

Score: +1

Mahershala Ali

as Sauron in Hobbit/LotR

Score: +1

Giancarlo Esposito

as Sauron in Hobbit/LotR

Score: +1

Jim Cummings

as Radagast in Hobbit/LotR

Score: +2