Suggestions by @jacobking1

Luke Bracey

as Ezekyle Abaddon in Warhammer 40k: The Horus Heresy (Amazon)

Score: +1

Rahul Kohli

as Ahzek Ahriman in Warhammer 40k: The Horus Heresy (Amazon)

Score: +2

Ewan Mitchell

as Fabius in Warhammer 40k: The Horus Heresy (Amazon)

Score: +1

Ben Barnes

as Konrad Curze in Warhammer 40k: The Horus Heresy (Amazon)

Score: +2

Connor Swindells

as Tarik Torgaddon in Warhammer 40k: The Horus Heresy (Amazon)

Score: 0

Jack O'Connell

as Garviel Loken in Warhammer 40k: The Horus Heresy (Amazon)

Score: +1

Lucy Boynton

as Euphrati Keeler in Warhammer 40k: The Horus Heresy (Amazon)

Score: +1

Steven John Ward

as Corvus Corax in Warhammer 40k: The Horus Heresy (Amazon)

Score: +1

Freema Agyeman

as Mersadie Oliton in Warhammer 40k: The Horus Heresy (Amazon)

Score: +1

Ralph Ineson

as Additional Voices 2 in Warhammer 40k: The Horus Heresy (Amazon)

Score: +1

Roger Allam

as Additional Voices 1 in Warhammer 40k: The Horus Heresy (Amazon)

Score: +1

Peter Capaldi

as Malcador the Sigilite in Warhammer 40k: The Horus Heresy (Amazon)

Score: +2

Henry Cavill

as Roboute Guilliman in Warhammer 40k: The Horus Heresy (Amazon)

Score: +2

Ed Skrein

as Eidolon in Warhammer 40k: The Horus Heresy (Amazon)

Score: +1

Lee Pace

as Fulgrim in Warhammer 40k: The Horus Heresy (Amazon)

Score: +3

Cecil B. DeMille

as Director in The Martian (1950s)

Score: +1

David Niven

as Mitch Henderson in The Martian (1950s)

Score: +1

Carroll Baker

as Mindy Park in The Martian (1950s)

Score: +1

Kirk Douglas

as Mark Watney in The Martian (1950s)

Score: +1

Maureen O'Hara

as Melissa Lewis in The Martian (1950s)

Score: +1