James Spader Raymond "Red" Reddington Actor Megan Boone Elizabeth Keen Actor Diego Klattenhoff Donald Ressler Actor Harry Lennix Harold Cooper Actor Ryan Eggold Tom Keen Actor Amir Arison Aram Mojtabai Actor Mozhan Marnò Samar Navabi Actor David Strathairn The Director Guest Star Reed Birney Tom Connolly Guest Star Ned Van Zandt Leonard Caul Guest Star Susan Blommaert Mr. Kaplan Guest Star Adriane Lenox Deputy Attorney General Guest Star Piter Marek Nick Guest Star Jon Bokenkamp Executive Producer John Eisendrath Executive Producer John Davis Executive Producer John Fox Executive Producer