Suggestions by @briarosie

Zendaya

as Elizabeth in The Mirror Visitor

Alexander Siddig

as Lazarus in The Mirror Visitor

Naveen Andrews

as Lazarus in The Mirror Visitor

Audra McDonald

as Hélene in The Mirror Visitor

Norm Lewis

as Pólux in The Mirror Visitor

Jessie Buckley

as Mediuna in The Mirror Visitor

Lucy Liu

as Janus I in The Mirror Visitor

Avan Jogia

as Octavio in The Mirror Visitor

Indira Varma

as Lady Septima in The Mirror Visitor

Lee Pace

as Farouk in The Mirror Visitor

Ruth Negga

as Gaelle in The Mirror Visitor

Laura Harrier

as Gaelle in The Mirror Visitor

Sam Heughan

as Renard in The Mirror Visitor

Domhnall Gleeson

as Renard in The Mirror Visitor

Daniel Sharman

as Archibald in The Mirror Visitor

Max Irons

as Archibald in The Mirror Visitor

Douglas Booth

as Archibald in The Mirror Visitor

Ian McKellen

as Great-Uncle in The Mirror Visitor

Bill Nighy

as Great-Uncle in The Mirror Visitor

Youn Yuh-jung

as Mother Hildegarde in The Mirror Visitor