Suggestions by @leopietro

Malcolm McDowell

as Quintus in Gladiator (1980)

Score: +1

Carl Weathers

as Juba in Gladiator (1980)

Score: +2

Helen Mirren

as Lucilla in Gladiator (1980)

Score: +2

David Bowie

as Commodus in Gladiator (1980)

Score: +2

Martin Sheen

as Maximus Decimus Meridius in Gladiator (1980)

Score: +2

Michelle Pfeiffer

as Welsh Heritage in Celebrities Face Claims Sorted by Heritage

Score: +2

Channing Tatum

as Welsh Heritage in Celebrities Face Claims Sorted by Heritage

Score: +2

Michael Douglas

as Welsh Heritage in Celebrities Face Claims Sorted by Heritage

Score: +2

Luke Evans

as Welsh Heritage in Celebrities Face Claims Sorted by Heritage

Score: +2

Daniel Craig

as Welsh Heritage in Celebrities Face Claims Sorted by Heritage

Score: +2

Russell Crowe

as Welsh Heritage in Celebrities Face Claims Sorted by Heritage

Score: +3

Dwayne Johnson

as Māori Heritage in Celebrities Face Claims Sorted by Heritage

Score: +1

Jason Momoa

as Māori Heritage in Celebrities Face Claims Sorted by Heritage

Score: +1

KJ Apa

as Māori Heritage in Celebrities Face Claims Sorted by Heritage

Score: +2

Karl Urban

as Māori Heritage in Celebrities Face Claims Sorted by Heritage

Score: +1

Russell Crowe

as Māori Heritage in Celebrities Face Claims Sorted by Heritage

Score: +1

Cliff Curtis

as Māori Heritage in Celebrities Face Claims Sorted by Heritage

Score: +1

Temuera Morrison

as Māori Heritage in Celebrities Face Claims Sorted by Heritage

Score: +1

Harrison Ford

as Batman in Donnerverse DC Comics

Score: +4

Vangelis

as Composer in The Mission (1986)

Score: +4