Jon Bokenkamp Creator, Executive Producer James Spader Raymond "Red" Reddington Actor, Executive Producer Diego Klattenhoff Donald Ressler Actor Hisham Tawfiq Dembe Zuma Actor Harry Lennix Harold Cooper Actor Alex Brightman Herbie Hambright Guest Star Derrick Williams Agent Jordan Nixon Guest Star Paulina Gálvez Angela Guest Star Jake Silbermann Agent Ishwood Guest Star Celeste Oliva Dr. Halloran Guest Star Sami Bray Agnes Guest Star Jonathan Holtzman Chuck Guest Star Nadine Malouf Nurse Practitioner Guest Star Kim Taff Receptionist Guest Star Michael John Benzaia Paramedic Guest Star Brendan Reardon Officer 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 Mike Caracciolo Director