Jon Bokenkamp Creator, Executive Producer James Spader Raymond "Red" Reddington Actor Megan Boone Elizabeth "Liz" Keen Actor Diego Klattenhoff Donald Ressler Actor Amir Arison Aram Mojtabai Actor Hisham Tawfiq Dembe Zuma Actor Harry Lennix Harold Cooper Actor Gabriel Mann Ilya Koslov Guest Star Brian Dennehy Dominic Wilkinson Guest Star C.J. Wilson Young Dominic Wilkinson Guest Star Lotte Verbeek Katarina Rostova Guest Star William Sadler Sam Milhoan Guest Star Cherise Boothe Amanda Guest Star Samantha Jones Jodi Guest Star Laura Hall Dark Haired Woman Guest Star Lily Lewinter Masha Rostova Guest Star Anastassia Krainik Irina Guest Star Jamie Farish Priest Guest Star John Eisendrath Executive Producer John Davis Executive Producer John Fox Executive Producer John Terlesky Director Sean Hennen Writer