Suggestions by @ipriest54753

Keanu Reeves

as John Grammaticus in Horus Heresy (Non-Primarchs)

Score: 0

Liam Neeson

as Luther in Horus Heresy (Non-Primarchs)

Score: +2

Terrance Stamp

as Malcador in Horus Heresy (Non-Primarchs)

Score: +1

Jon Bernthal

as Ezekiel Abaddon in Horus Heresy (Non-Primarchs)

Score: -1

Donald Sumpter

as Kyril Sindermann in Horus Heresy (Non-Primarchs)

Score: +1

Anton Lesser

as Malcador in Horus Heresy (Non-Primarchs)

Score: +3

Mandip Gill

as Camille Shivani in Horus Heresy (Non-Primarchs)

Score: +1

Nikolaj Coster-Waldau

as Saul Tarvitz in Horus Heresy (Non-Primarchs)

Score: 0

Lance Reddick

as Artellus Numeon in Horus Heresy (Non-Primarchs)

Score: +1

Dave Bautista

as Ezekiel Abaddon in Horus Heresy (Non-Primarchs)

Score: 0

Chiwetel Ejiofor

as Azhek Ahriman in Horus Heresy (Non-Primarchs)

Score: +2

Mads Mikkelsen

as Jago Sevatarion in Horus Heresy (Non-Primarchs)

Score: +2

Patrick Stewart

as Kyril Sindermann in Horus Heresy (Non-Primarchs)

Score: -1

Michael Caine

as Kyril Sindermann in Horus Heresy (Non-Primarchs)

Score: +1

Christopher Plummer

as Kyril Sindermann in Horus Heresy (Non-Primarchs)

Score: +1

Jonathan Pryce

as Kyril Sindermann in Horus Heresy (Non-Primarchs)

Score: +2

Mark Rylance

as Kyril Sindermann in Horus Heresy (Non-Primarchs)

Score: +3

Sam Caflin

as Remus Ventanus in Horus Heresy (Non-Primarchs)

Score: +1

Kevin McKidd

as Remus Ventanus in Horus Heresy (Non-Primarchs)

Score: +1

Richard Madden

as Remus Ventanus in Horus Heresy (Non-Primarchs)

Score: +1