The series will begin filming this month in Belgrade, Serbia.
Grace Hogg-Robinson will play Isabel Summers, an ambitious young woman who joins the Clerical Office alongside Ivy.
The Irish co-producer is Jim Duggan, while the Serbian co-producer Anelija Vlaisavljevic.
Kate Phillips in ‘Miss Scarlet’Masterpiece
The senior series producer for Masterpiece is Erin Delaney.
The directors for Season 6 are Ivan Zivkovic and Rachael New.
