The below interview contains spoilers for Dune: Prophecy Episode 4. It wouldn't be a Dune TV series without some Harkonnens plotting and scheming their way into pow

Prophecy, "Twice Born," got us even better acquainted with the Harkonnen family. We've already spent a lot of time with Valya (Emily Watson) and Tula Harkonnen (Olivia Williams), sisters who became part of the Bene Gesserit sisterhood.