Madeleine Potter

as Sylvia Oakes

as Houdini's Mistress (2 episodes)

as Sarah Sidgwick

as Grushenka

as Secretary of the Treasure

as Alice Harrison

as Professor Tate (1 episode)

as Edith Del Mar (1 episode)

as Lady Castledean

as Celia Patchett (1 episode)

as Morgan / Nula

as Annabel

as Widow Mary

as Daria

as Nancy

as Felicity Glick

as Zena (1 episode), as Simone Peters / Susan Petersborough (1 episode)

as Verena Tarrant

as Antonia

as Widow Mary (1 episode)