Suggestions by @redara

Dev Patel

as Solomon Wreath in Skulduggery Pleasant

Jay Lycurgo

as Dean Thomas in Marauders + HP

Yvonne Strahovski

as Davina Marr in Skulduggery Pleasant

Michael Fassbender

as Ghastly Bespoke in Skulduggery Pleasant

Barry Keoghan

as Caelan in Skulduggery Pleasant

Bill Nighy

as Springheeled Jack in Skulduggery Pleasant

Boyd Holbrook

as Billy-Ray Sanguine in Skulduggery Pleasant

Catriona Balfe

as Eliza Scorn in Skulduggery Pleasant

Hunter Doohan

as Nefarian Serpine in Skulduggery Pleasant

Christian Bale

as Baron Vengeous in Skulduggery Pleasant

Tom Glynn-Carney

as Fletcher Renn in Skulduggery Pleasant

Miguel Sapochnik

as Director in Skulduggery Pleasant

Hafþór Júlíus Björnsson

as Mevolent in Skulduggery Pleasant

Mahershala Ali

as Mr Bliss in Skulduggery Pleasant

Anok Yai

as China Sorrows in Skulduggery Pleasant

Jamie Lee O'Donnell

as Valkyrie Cain in Skulduggery Pleasant

Liam Neeson

as Skulduggery Pleasant in Skulduggery Pleasant

rechelcamille

as Jenyedi Xho in Lords And Ladies

Jayme Lawson

as Jenyedi Xho in Lords And Ladies

Fotinì Peluso

as Saera Blackwood in Lords And Ladies