Suggestions by @huuuum

Ariana Grande

as Selphie Tilmitt in Christopher Nolan's Final Fantasy VIII

Score: +1

Barry Keoghan

as Seifer Almasy in Christopher Nolan's Final Fantasy VIII

Score: -2

Anya Taylor-Joy

as Quistis Trepe in Christopher Nolan's Final Fantasy VIII

Score: +2

Paul Rudd

as Laguna Loire in Christopher Nolan's Final Fantasy VIII

Score: -4

Karen Fukuhara

as Rinoa Heartilly in Christopher Nolan's Final Fantasy VIII

Score: -2

Timothée Chalamet

as Squall Leonhart in Christopher Nolan's Final Fantasy VIII

Score: +3

Olga Kurylenko

as Ultimecia in Final Fantasy VIII

Score: +1

LaKeith Stanfield

as Kiros Seagill in Final Fantasy VIII

Score: 0

Ana de Armas

as Liara T'Soni in Mass Effect on HBO

Score: +2

Keith David

as Captain Anderson in Mass Effect on HBO

Score: +1

John David Washington

as Commander Shepard in Mass Effect on HBO

Score: +1

Nathalie Emmanuel

as Liara T'Soni in Mass Effect

Score: 0

Martin Sheen

as The Illusive Man in Mass Effect

Score: +1

Tricia Helfer

as EDI in Mass Effect

Score: +4

Iain Glen

as Garrus Vakarian in Mass Effect

Score: +1

Jake Gyllenhaal

as Commander Shepard in Mass Effect

Score: 0

John David Washington

as Commander Shepard in Mass Effect

Score: -1

Ryan Gosling

as Commander Shepard in Mass Effect

Score: -2

Jessica Chastain

as Commander Shepard in Mass Effect

Score: -2

Michael B. Jordan

as Commander Shepard in Mass Effect

Score: -2