Enoch "Nucky" Thompson

Steve Buscemi

Elias 'Eli' Thompson

Shea Whigham

James 'Jimmy' Darmody

Michael Pitt

Louis 'The Commodore' Kaestner

Dabney Coleman

Margaret Schroeder / Margaret Thompson

Kelly Macdonald

Nelson Van Alden

Michael Shannon

Arnold Rothstein

Michael Stuhlbarg

"Big Jim" Colosimo

Frank Crudele

Al Capone

Stephen Graham

Charles 'Lucky' Luciano

Vincent Piazza

Edward 'Eddie' Kessler

Anthony Laciura

Albert 'Chalky' White

Michael Kenneth Williams

Angela

Aleksa Palladino

Mieczysław 'Mickey' Doyle

Paul Sparks

Gillian Darmody

Gretchen Mol

Lucy

Paz de la Huerta

John "Johnny" Torrio

Greg Antonacci

Richard Harrow

Jack Huston

Ethan Thompson

Tom Aldredge

Hans Schroeder

Joe Sikora

Paddy Ryan

Samuel Taylor

Owen Sleater

Charlie Cox

Agent Sebso

Erik Weiner

Valentin Narcisse

Jeffrey Wright

Frankie Yale

Joseph Riccobene

Giuseppe 'Gyp' Rosetti

Bobby Cannavale

Bill McCoy

Pearce Bunting

Roy Phillips

Ron Livingston

Ward Boss George O'Neil

William Hill

Emily Schroeder

Lucy Gallina

Emily Schroeder

Josie Gallina

Ward Boss Jim Neary

Robert Clohessy

Ward Boss Fleming

Victor Verhaeghe

Theodore "Teddy" Schroeder / Teddy Thompson

Declan McTigue

Mayor Edward Bachrach

John Rue

Theodore "Teddy" Schroeder / Teddy Thompson

Rory McTigue

Mrs. McGarry

Dana Ivey

Tommy Darmody

Connor Noon

Tommy Darmody

Brady Noon

Louanne Pratt

Johnnie Mae

Supervisor Frederick Elliot

Peter McRobbie

Lolly Steinman

Danny Burstein

Lady Jean

Charleigh Parker

Eddie Cantor

Stephen DeRosa

Raymond "Ray" Halloran

Adam Mucci

Babette

Tracy Lynn Middendorf

William 'Willie' Thompson

Ben Rosenfield

Al Boyd

Edward McGinty

Ignacious D'Alessio

Edoardo Ballerini

Leo D'Alessio

Max Casella

Isabelle Jeunet

Anna Katarina

Pius D'Alessio

Nicholas Martino

Meyer Lansky

Anatol Yusef

Esther Randolph

Julianne Nicholson

Mary Dittrich

Lisa Joyce

Matteo D'Alessio

Al Linea

Annabelle

Megan Reinking

Edward "Ed" Bader

Kevin O'Rourke