Ben Affleck as Joe Coughlin

Elle Fanning as Loretta Figgis

Brendan Gleeson as Thomas Coughlin

Chris Messina as Dion Bartolo

Sienna Miller as Emma Gould

Zoe Saldaña as Graciella Suarez

Chris Cooper as Chief Irving Figgis

Anthony Michael Hall as Gary Smith

Titus Welliver as Tim Hickey

Derek Mears as Donnie Gishler

Max Casella as Digger Pescatore

Robert Glenister as Albert White

Chris Sullivan as Brendan Loomis

J.D. Evermore as Virgil Beauregard

Tom Virtue as Doctor

Matthew Maher as RD Pruitt

Bruno Amato as Jeff

Benny Ciaramello as Paulo Bartolo

Michael Mantell as Jack Jarvis

Michael Chieffo as Pastor

Andrew Bongiorno as Fasani

Austin Swift as Mayweather

Mark Burzenski as Statler Guest (uncredited)

Lucy Angelo as Train Passenger (uncredited)

Larry Eudene as Northend Newspaper Vendor (uncredited)

Lexie Roth as Gillette Factory Worker (uncredited)

Katie O'Malley as Cigarette Girl (uncredited)

John Bishop as Disheveled Man (uncredited)

Remo Girone as Maso Pescatore

Lewis D. Wheeler as Herald Reporter

Clark Gregg as Calvin Bondurant

Heidi Moneymaker as Assassin (uncredited)

Michael Papajohn as Maso's Crew (uncredited)

Bill Blair as Factory Worker (uncredited)

Lucien Spelman as Statler Party Guest (uncredited)

Christian Clemenson as Ritz Investor

Anthony Molinari as Maso's Crew (uncredited)