The Blacklist 6×18 “The Brockton College Killer” & 6×19 “Rassvet” Sneak Peek – When a frozen corpse is discovered in the woods, the Task Force is drawn into the investigation of an old case that has gained notoriety due to a popular true crime podcast. Meanwhile, Red (James Spader) visits Dom Wilkinson (guest star Brian Dennehy) for help making a difficult decision, and Ressler (Diego Klattenhoff) makes a discovery about Katarina Rostova’s past. The Blacklist 6×19 “Rassvet” – Alone in a foreign country after a mission goes catastrophically wrong, Katarina Rostova (guest star Lotte Verbeek) goes on the run to avoid the forces trying to hunt her down. Isolated and out of options, she seeks out the only person she trusts, a man who has vowed to always protect her. Gabriel Mann and Brian Dennehy also guest star.