Suggestions by @dragonassassin7

Mira Furlan

as Qui-Gon Jinn in Star Wars Gender Swap (Prequel Trilogy)

Score: -1

Viola Davis

as Darth Vader (Voice) in Star Wars Gender Swap (Prequel Trilogy)

Score: +6

Helen Mirren

as Finis Valorum in Star Wars Gender Swap (Prequel Trilogy)

Score: +1

Annette O'Toole

as Sio Bibble in Star Wars Gender Swap (Prequel Trilogy)

Score: +2

Alex Borstein

as Boss Nass in Star Wars Gender Swap (Prequel Trilogy)

Score: +1

Djimon Hounsou

as Vaatu in The Legend of Korra

Score: +1

Allison Janney

as Cliegg Lars in Star Wars Gender Swap (Prequel Trilogy)

Score: +2

Jennifer Hale

as General Grievous in Star Wars Gender Swap (Prequel Trilogy)

Score: +3

Henry Golding

as Bultar Swan in Star Wars Gender Swap (Prequel Trilogy)

Score: 0

Mena Massoud

as Barriss Offee in Star Wars Gender Swap (Prequel Trilogy)

Score: +1

Paul Bettany

as Shaak Ti in Star Wars Gender Swap (Prequel Trilogy)

Score: +1

Tara Fitzgerald

as Saesee Tiin in Star Wars Gender Swap (Prequel Trilogy)

Score: +2

Sanaa Lathan

as Kit Fisto in Star Wars Gender Swap (Prequel Trilogy)

Score: +1

Regina King

as Agen Kolar in Star Wars Gender Swap (Prequel Trilogy)

Score: 0

Chiwetel Ejiofor

as Luminara Unduli in Star Wars Gender Swap (Prequel Trilogy)

Score: +1

Noomi Rapace

as Mas Amedda in Star Wars Gender Swap (Prequel Trilogy)

Score: +2

Jodie Foster

as Qui-Gon Jinn in Star Wars Gender Swap (Prequel Trilogy)

Score: +4

Genevieve O'Reilly

as Mas Amedda in Star Wars Gender Swap (Prequel Trilogy)

Score: +1

Rachel Weisz

as Qui-Gon Jinn in Star Wars Gender Swap (Prequel Trilogy)

Score: +2