| 詹姆斯?布尔杰 | 约翰尼·德普
 | |
| 乔尔?埃哲顿 | 乔尔·埃哲顿
 | |
| 比利?布尔杰 | 本尼迪克特·康伯巴奇
 | |
| Lindsey Cyr | 达科塔·约翰逊
 | |
| 查尔斯?麦奎尔 | 凯文·贝肯
 | |
| Deborah Hussey | 朱诺·坦普尔
 | |
| Fred Wyshak | 寇瑞·斯托尔
 | |
| FBI Agent Robert Fitzpatrick | 亚当·斯科特
 | |
| Kevin Weeks | 杰西·普莱蒙
 | |
| Brian Halloran | 彼得·萨斯加德
 | |
| Marianne Connolly | 朱丽安妮·尼科尔森
 | |
| Steve Flemmi | 罗利·科奇瑞恩
 | |
| John Martorano | W·厄尔·布朗
 | |
| John Morris | 大卫·哈伯
 | |
| John McIntyre | Brad Carter | |
| Agent Scott Gariola | 詹姆斯·拉索
 | |
| Josh Bond | 吉瑞米·斯特朗
 | |
| Mrs. Cody | Jamie Donnelly | |
| Mary Bulger | Erica McDermott | |
| John Callahan | Bill Camp | |
| Young Boy | 布雷顿·曼雷
 | |
| Task Force Agent | Jay Giannone | |
| Tommy King | Scott G. Anderson | |
| Paddy McAloon | 安东尼·莫伦纳
 | |
| Michael Donahue | Patrick M. Walsh | |
| Buddy Leonard | Owen Burke | |
| McGuires Secretary | Danae Nason
 | |
| Father Mackey | Tom Kemp | |
| Lowlife #2 | Chris Lemieux | |
| Street Protester | Richard Eklund III | |
| Orange Cart Vendor | Larry Eudene | |
| Angiulos Soldier | Steven DeMarco | |
| Rocco | Damien Di Paola | |
| Bartender | Jeff Valenti | |
| DEA Agent Eric Olsen | Lonnie Farmer | |
| Parishioner / Pancake Breakfast Attendee | Tom Driscoll | |
| Italian Mobster | Thomas Mariano | |
| Bartender | Marinko Radakovic | |
| School Teacher | J.T. Turner | |
| FBI Dir Wm Sessions | William Ambrose Ke.. | |
| Mary Bulger | Maeve Power | |
| Mobster | Stevie Costa | |
| Dock Worker | Eddie Troy | |
| FBI task force agent | George J. Vezina
 | |
| Charlies Friend #1 | Todd Ryan Jones | |
| TV News Reporter | 马歇尔·贝伦森
 | |
| Commisioner DiGrazia | Jeremiah Kissel
 | |
| Mafia Guy and 1972 Cadillac | Karl carlo Green | |
| State Captain | Gary Galone | |
| Officer Flynn | David Conley | |
| Police Officer | Mike Swanson | |
| Marion Hussey | Colleen Kelly | |
| Anna Bjornsdottir | Berglind Jonsdottir | |
| Mom Bulger | Mary Klug | |
| FBI Agent | Simba Dibinga | |
| Boston Firefighter | Sonny Saggese | |
| Jeremiah OSullivan | Lewis D. Wheeler | |
| Douglas Cyr | Luke Ryan | |
| DEA Agent Dan Doherty | Alexander Cook | |
| Barman | Jack Neary | |
| Gangster | Sal DiMino | |
| Prisoner | Brian White | |
| Spectator | Davide Leone | |
| Eddie Phillips | Jon Pierce | |
| Roger Wheeler | David De Beck | |
| Lowlife #1 | Steve Rasetta | |
| FBI Wire Tech | Thomas Philip ONe.. | |
| Mr. Saint Paddy | Jason Mayoh | |
| Alice Sessions | Terry Conforti | |
| LA FBI Task Agent 1 | David Cummins | |
| FBI Agent | Kyle Viveiros | |
| Joe Cahill | Billy Meleady | |
| Teddy | Cayley Bell | |
| Angiulo Mobster | Anthony Wozniak | |
| Little Mary Bulger | Ava Cooper | |
| FBI Agent | Ian Leson | |
| (uncredited) | Anna Daraz | |
| FBI Agent | Joel Fearon | |
| FBI Agent | Geoff Whitman | |
| FBI agent | Joseph Richardson | |
| Drug Dealer #2 | Darin MacEachern | |
| Homicide Detective | Joseph P. Barrett | |
| FBI Agents Wife | Melinda Boczanowski | |
| Dead Italian Mobster #1 | Joe Jafo Carriere | |
| Politician | John J. Burke | |
| Dock Worker | Nicholas Savoia | |
| Skinny OLeary | Albert Talbot | |
| Daniel Bulger | Chace Frazier | |
| State Trooper | Boyd Drew | |
| Halldor Gudmundsson | Magnus Bjornsson | |
| Pancake Breakfast Attendee | Giovanni Alabiso | |
| Parade Spectator / Pancake Breakfast Patron | Amanda Blattner | |
| Press Cameraman / Southie Spectator | Mark Burzenski | |
| Pedestrian | Tom Carrigan | |
| Protestor | Cary Christiansen | |
| Restaurant Bar Patron | Angel Connell | |
| Photographer | Jeffrey Corazzini
 | |
| Miami Pedestrian | Devon Coull | |
| Bar Patron | Peter Crafts | |
| Child at Beach | Naysa Kaira DaSilva | |
| Irish Mobster | James Davison | |
| Floor Dancer | Julie Ann Dawson | |
| Background | Lunara Devers | |
| Irish Mobster | Curtis Eames | |
| FBI Special Agent | Steve Flynn | |
| Protestor | Thomas Michael Flynn | |
| Protestor | Jim Ford | |
| Breakfast Guest | Adam J. Freeman
 | |
| Parade spectator | Abigail Friend | |
| Press Photographer | Susan DeBerardinis | |
| Core FBI Agent | John Gigliotti | |
| Irish American Woman | Phyllis Gordon II | |
| Mourner | Jared M. Gordon | |
| Italian Woman | Elaine Victoria Grey | |
| FBI Secretary | Kirsten Grimes | |
| Bartender | Josh Gunderson | |
| Disco Dancer | Jason Hair-Wynn | |
| FBI Agent / Driver | Arthur Hiou | |
| Vintage car driver | Steven Howitt | |
| Politicians Wife | Lin Hultgren | |
| FBI Agent | Frankie Imbergamo
 | |
| Flemmis Girlfriend | Kate Jurdi | |
| Walker | Jeff Kamps | |
| Havana Bar Patron | Graham King | |
| Driver | Patrick Languzzi | |
| Spectator | Lauren Laperriere | |
| Protesting Mom | 凯西·丽沙·贝伦森
 | |
| Port Hole Bar Patron | John Joseph Lindsey | |
| Floor Dancer / Bartender | Jordan Lloyd | |
| Protester | Jeanne Lohnes | |
| Teen boy on banana bike | Benjamin Manoli | |
| Restaurant Patron | Jamie Mazareas | |
| Bartender | Jimmy McCarthy | |
| FBI Agent | Ryan Barry McCarthy | |
| FBI Agent | Peter Morse | |
