Steve Buscemi Enoch "Nucky" Thompson Actor Kelly Macdonald Margaret Schroeder Actor Michael Shannon Nelson Van Alden Actor Shea Whigham Elias Thompson Actor Anthony Laciura Eddie Kessler Actor Stephen Graham Al Capone Actor Michael Stuhlbarg Arnold Rothstein Actor Vincent Piazza Lucky Luciano Actor Paul Sparks Mickey Doyle Actor Michael Kenneth Williams Chalky White Actor Gretchen Mol Gillian Actor Charlie Cox Owen Sleater Actor Jack Huston Richard Harrow Actor Bobby Cannavale Gyp Rosetti Actor William Forsythe Manny Horvitz Guest Star Christopher McDonald Harry Daugherty Guest Star Meg Chambers Steedle Billie Kent Guest Star Arron Shiver Dean O'Banion Guest Star Terence Winter Executive Producer Martin Scorsese Executive Producer Timothy Van Patten Executive Producer Stephen Levinson Executive Producer Mark Wahlberg Executive Producer