Suggestions by @darke

Karen Fukuhara

as Katma Tui in Green Lantern: Sinestro War

Chloë Grace Moretz

as Arisia Rrab in Green Lantern: Sinestro War

Aaron Taylor-Johnson

as Hal Jordan in Green Lantern: Sinestro War

John Boyega

as John Stewart in Green Lantern: Sinestro War

Ron Perlman

as Kilowog in Green Lantern: Sinestro War

Christian Bale

as Thaal Sinestro in Green Lantern: Sinestro War

Michael Gambon

as Ganthet in Green Lantern: Sinestro War

David Bradley

as Appa Ali Apsa in Green Lantern: Sinestro War

Daniel Craig

as Tomar-Re in Green Lantern: Sinestro War

Keith David

as Mogo in Green Lantern: Sinestro War

Eddie Redmayne

as Bro'Dee Walker in Green Lantern: Sinestro War

Logan Lerman

as Razer in Green Lantern: Sinestro War

Mackenzie Davis

as Carol Ferris in Green Lantern: Sinestro War

Jake Picking

as Clark Kent in Green Lantern: Sinestro War

Milly Alcock

as Kara Zor-El in Green Lantern: Sinestro War

Ken Watanabe

as Abin Sur in Green Lantern: Sinestro War

Parallax

as "The Entity" in Green Lantern: Sinestro War

Spoiler

as "The Entity" in Green Lantern: Sinestro War

Guillermo del Toro

as Director in Green Lantern: Sinestro War

Larkin Seiple

as Cinematographer in The Flash 2