Suggestions by @ninewheels

Stephen Graham

as James Logan Howlett in X-Men

Rebecca Hall

as Jean grey in X-Men

Stanley Tucci

as Charles Xavier in X-Men

John Noble

as Adam Susan in V For Vendetta

Chiwetel Ejiofor

as V in V For Vendetta

Florence Pugh

as Evey Hammond in V For Vendetta

Dev Patel

as Arwen in The Lord of the Rings (genderbent)

Alan Tudyk

as Kefka Palazzo in Final Fantasy VI

John Hurt

as Strago Magus in Final Fantasy VI

Dev Patel

as Locke Cole in Final Fantasy VI

Jason Scott Lee

as Shadow in Final Fantasy VI

Hiroyuki Sanada

as Shadow in Final Fantasy VI

Brit Marling

as Celes Chere in Final Fantasy VI

Jessica Chastain

as Celes Chere in Final Fantasy VI

Rila Fukushima

as Terra Branford in Final Fantasy VI

Emory Cohen

as Locke Cole in Final Fantasy VI

Evan Peters

as Locke Cole in Final Fantasy VI

Tanner Buchanan

as Edge Geraldine in Final Fantasy IV

Brad Dourif

as Tellah in Final Fantasy IV

Keone Young

as Cid Pollendina in Final Fantasy IV