Suggestions by @dontchewdare

Young Tom Welling

as Malyen Oretsev in The Grisha Trilogy

Score: +1

Jessica Chastain

as Genya Safin in (Six of Crows &) Shadow and Bone (The Grisha Trilogy) / Grishaverse

Score: +1

Young Tom Welling

as Malyen Oretsev in (Six of Crows &) Shadow and Bone (The Grisha Trilogy) / Grishaverse

Score: -1

Rob James-Collier

as Sven in The Remnant Chronicles

Score: +1

Kit Harington

as Walther in The Remnant Chronicles

Score: +1