Suggestions by @poppydunning

Lydia West

as Marta Dyas in The Locked Tomb / Gideon the Ninth

Julian Dennison

as Ortus in Gideon the Ninth

Gloria Obianyo

as Marta Dyas in Gideon the Ninth

Jodie Turner-Smith

as Judith Deuteros in Gideon the Ninth

Isabelle Furhman

as Camilla Hect in The Locked Tomb / Gideon the Ninth

Courtney Eaton

as Harrowhark Nonagesimus in The Locked Tomb / Gideon the Ninth

Leonie Whyman

as Gideon Nav in Gideon the Ninth

Isabella Evans

as Harrowhark Nonagesimus in The Locked Tomb / Gideon the Ninth

Olivia Cooke

as Commander Wake in The Locked Tomb / Gideon the Ninth

Hannah Dodd

as Coronabeth Tridentarius in The Locked Tomb / Gideon the Ninth

Victoria Wyant

as Cytherea the First in The Locked Tomb / Gideon the Ninth

Victoria Wyant

as Dulcinea Septimus in The Locked Tomb / Gideon the Ninth

Madeleine Sami

as We Suffer in The Locked Tomb / Gideon the Ninth

Giulia Heathfield Di Renzi

as Commander Wake in The Locked Tomb / Gideon the Ninth

Natasha Lyonne

as Pyrrha Dve in The Locked Tomb / Gideon the Ninth

James Rolleston

as John Gaius in The Locked Tomb / Gideon the Ninth

Rena Owen

as Aiglamene in The Locked Tomb / Gideon the Ninth

Rachel House

as We Suffer in The Locked Tomb / Gideon the Ninth

Jay Lycurgo

as Isaac Tettares in The Locked Tomb / Gideon the Ninth

Nicola Coughlan

as Coronabeth Tridentarius in The Locked Tomb / Gideon the Ninth