 | Michael Caine als Harry Brown |
 | Emily Mortimer als D.I. Alice Frampton |
 | Iain Glen als S.I. Childs |
 | Lee Oakes als Dean Saunders |
 | Liam Cunningham als Sid Rourke |
 | Sean Harris als Stretch |
 | Charlie Creed-Miles als D.S. Terry Hicock |
 | David Bradley als Leonard Attwell |
 | Ben Drew als Noel Winters |
 | Jack O'Connell als Marky |
 | Jamie Downey als Carl |
 | Liz Daniels als Kath Brown |
 | Raza Jaffrey als Father Bracken |
 | Joseph Gilgun als Kenny |
| Claire Hackett als Jean Winters |
 | Forbes KB als Troy Martindale |
 | Grace Vallorani als Linda |
 | Marva Alexander als Nurse #1 |
 | Orla O'Rourke als Nurse #2 |
 | Marvin Campbell als Stunt Neighbour |
 | Sian Milne als Stunt Girlfriend |
 | Radosław Kaim als Doctor |
 | Klariza Clayton als Unconscious Girl |
 | Michelle Tate als Female Gang Member |
 | Andy Pilgrim als Stunt Youth |
 | Mens-Sana Tamakloe als Stunt Rioter |
 | Amanda Foster als Stunt Police |
 | Pete Ford als Stunt Police |
 | Roy Taylor als Stunt Police |
 | Chris Pollard als Stunt Police |
 | Ian van Temperley als Stunt Police |
 | Andy Wareham als Stunt Boy on bike |
| Ian Pead als Stunt Boy on bike |
 | Belinda McGinley als Mother |
| Christos Michaels | Executive Producer |
| Ruth Barrett | Original Music Composer |
| Paul Brett | Executive Producer |
| Gary Young | Screenplay |
| Tim Smith | Executive Producer |
| Keith Bell | Producer |
| Matthew Vaughn | Producer |
| Steve Norris | Executive Producer |
| Martin Phipps | Original Music Composer |
| Kave Quinn | Production Design |
| Daniel Barber | Director |
| Kris Thykier | Producer |
| Tim Haslam | Executive Producer |
| Reno Antoniades | Executive Producer |
| Matthew Brown | Producer |
| Martin Ruhe | Director of Photography |
| Joe Walker | Editor |
| Dan Hubbard | Casting |
| Jane Petrie | Costume Design |
| Nina Hartstone | Dialogue Editor |
| Ian Tapp | Sound Re-Recording Mixer |
| Gillian Dodders | Supervising Sound Editor |
| Jacqueline Fowler | Makeup Designer |
| Abigail Edwards | Makeup Artist |
| Dan Osborne | Armorer |
| Matt Biffa | Music Supervisor |
| Thomas Townend | Second Unit Cinematographer |
| Andrea King | Foley |
| Dean Rogers | Still Photographer |
| Bob Hollow | Special Effects Supervisor |
| Pedro Sabrosa | Visual Effects Supervisor |
| Caroline Bateman | Art Department Assistant |
| Jacqueline Fowler | Hair Designer |
| Alison Rainey | Makeup Artist |
| Gemma Ryan | Set Decoration |
| James Bellamy | Music Editor |
| Nigel Bunyan | Visual Effects Editor |
| Paul Hyman | Visual Effects Editor |
| Chris Lowe | Art Direction |
| Julian White | Gaffer |
| Kelly Marazzi | Makeup Artist |
| Sally Jones | Script Supervisor |
| Denzil Armour-Brown | Second Unit Cinematographer |
| Pete Jones | Visual Effects Coordinator |
| Tom Sayers | Supervising Sound Editor |
| Simon Baker | Camera Operator |
| Dion M. Casey | Steadicam Operator |
| Michael Stanish | Visual Effects Producer |
| Jack Stew | Foley |
| Richard Pryke | Sound Re-Recording Mixer |
| Martin Duncan | Gaffer |
| Alan Grayley | Rigging Gaffer |
| Rob Huckle | Dolby Consultant |
| Kelly Marazzi | Hairstylist |
| Ben Barker | Sound Effects Editor |
| Gavin Round | Digital Intermediate |
| Heather Storr | Script Supervisor |
| Mike Morrison | Digital Intermediate |
| Nadia Stacey | Other |
| Sian Milne | Stunt Double |
| Simon Hayes | Production Sound Mixer |
