Jon Bokenkamp Creator, Executive Producer James Spader Raymond "Red" Reddington Actor, Executive Producer 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 Laura Sohn Alina Park Actor Laila Robins Katarina Rostova Guest Star Jonathan Holtzman Chuck Guest Star Gary Littman Dr. Clemons Guest Star Ron Raines Dominic Wilkinson Guest Star Rey Lucas Eduardo Martinez Guest Star Genson Blimline Morgan Guest Star Andrew Dits Simms Guest Star Lotte Verbeek Young Katarina Rostova Guest Star Carole Denise Jones Carol Guest Star Dominique Allen Lawson Reggie Guest Star Michael Pemberton William Heidegger Guest Star Michelle Vo Assistant Guest Star Anthony E. Williams Security #1 Guest Star Cooper Grodin Bud Guest Star Jeremiah Clarke Security #2 Guest Star John Eisendrath Executive Producer John Davis Executive Producer John Fox Executive Producer Lukas Reiter Executive Producer, Writer J.R. Orci Executive Producer Laura Benson Executive Producer Stephanie A. Marquardt Director