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 David Meunier Louis T. Steinhil Guest Star Peter Bradbury Berdy Guest Star Brian Dennehy Dominic Wilkinson Guest Star Laila Robins Katarina Rostova Guest Star Natalie Paul Mila LaPorte Guest Star Katherine Kell Agnes Guest Star Sarah Kell Agnes Guest Star Deirdre Madigan Margaret Guest Star Graham Wolfe Armed Guard Guest Star Anna Fikhman Employee Guest Star Leandra Ryan Med Tech Guest Star Annie Unger Receptionist Guest Star Daniel Passaro SWAT Agent Guest Star John Eisendrath Executive Producer John Davis Executive Producer John Fox Executive Producer Cort Hessler Director Lukas Reiter Writer