Suggestions by @everythingeverything

Halle Berry

as Katma Tui in Green Lantern

Score: +1

John Mulaney

as B’dg in Green Lantern

Score: +1

Dave Bautista

as Arkkis Chummuck in Green Lantern

Score: +1

Phil LaMarr

as Ganthet in Green Lantern

Score: +1

Kevin Conroy

as Guardians of The Universe in Green Lantern

Score: +1

Ali Wong

as Boodika in Green Lantern

Score: +1

Idris Elba

as Atrocitus in Green Lantern

Score: +1

Benedict Cumberbatch

as The Flames of Py’Tar in Green Lantern

Score: +1

Andy Serkis

as Shifflet in Green Lantern

Score: +1

Don Cheadle

as Radocko in Green Lantern

Score: +1

Tyler James Williams

as Amon-Sur in Green Lantern

Score: +1

Lupita Nyong'o

as Arin-Sur in Green Lantern

Score: +1

Winston Duke

as Despero in Green Lantern

Score: +1

Peter Capaldi

as Tomar-Re in Green Lantern

Score: +1

Ron Perlman

as Kilowog in Green Lantern

Score: +1

Jason Isaacs

as Thaal Sinestro in Green Lantern

Score: +1

David Oyelowo

as Abin Sur in Green Lantern

Score: +1