Suggestions by @nickienicks

Ralph Fiennes

as King Tauri in Fourth Wing

Kristen Li

as Aurelie in Fourth Wing

Florence Pugh

as Amber Mavis in Fourth Wing

Samuel L. Jackson

as Nolan in Fourth Wing

Viola Davis

as Winifred in Fourth Wing

Ana de Armas

as Jesinia in Fourth Wing

Emily Blunt

as Sgaeyl (voice) in Fourth Wing

James McAvoy

as Tairn (voice) in Fourth Wing

Tom Holland

as Sawyer in Fourth Wing

Avan Jogia

as Bodhi in Fourth Wing

Ansel Elgort

as Ridoc in Fourth Wing

Aaron Taylor-Johnson

as Garrick in Fourth Wing

John Krasinski

as Professor Kaori in Fourth Wing

Tom Hardy

as General Melgren in Fourth Wing

Henry Cavill

as Brennan in Fourth Wing

Joe Keery

as Jack Barlowe in Fourth Wing

Vanessa Kirby

as Imogen in Fourth Wing

Margot Robbie

as Mira in Fourth Wing

Timothée Chalamet

as Dain in Fourth Wing

Dacre Montgomery

as Liam in Fourth Wing