 | Jason Patric als Detective Reed |
 | Milo Gibson als Al Capone |
 | Peter Facinelli als George 'Bugs' Moran |
 | Jamie-Lynn Sigler als Lulu Rolfe |
 | Sean Faris als Jack McGurn |
 | Mark Rolston als Dion O'Banion |
 | Michael Paré als O'Connor |
 | Al Sapienza als Johnny Torrio |
 | Don Harvey als Detective Landa |
 | Sean Kanan als Detective Boyle |
 | Jason Brooks als Agent Wilson |
 | Ryan Kiser als Peter Gusenberg |
 | Joe Coffey als Drucci |
 | Stephen Brown als Granata |
 | Louis Fasanaro als Alberto Anselmi |
| Timothy Woodward Jr. | Director |
| Ian Patrick Williams | Writer |
| James Cullen Bressack | Producer |
| Lauren De Normandie | Producer |
| Jarrett Furst | Producer |
| Timothy Woodward Jr. | Producer |
| Pablo Díez | Director of Photography |
| Samuel Joseph Smythe | Music |
| Paul Covington | Editor |
| Christian Ramirez | Production Design |
| Ryan Henneman | Art Direction |
| Erica D. Schwartz | Costume Design |
| Lori Franklin-Garcia | Script Supervisor |
| Minn Vo | Choreographer |
| Vyvy Tran | Makeup Department Head |
| Ching Tseng | Makeup Department Head |
| Alyssa Hudson | Makeup Artist |
| Gina Nicole Maceri | Makeup Artist |
| Tim Gagliardo | First Assistant Director |
| Bradley Elliott | Dialogue Editor |
| Preston Hawk | Dialogue Editor |
| Angela Haggard | Foley |
| Lawrence He | Foley Editor |
| Josh Badger | Sound Editor |
| Chris Becker | Sound Effects Editor |
| Keith Morrow | Sound Effects Editor |
| Bradley Elliott | Sound Re-Recording Mixer |
| Preston Hawk | Supervising Sound Editor |
| Garret Roosa | Visual Effects Producer |
| Shant Jordan | Visual Effects Supervisor |
| Brad Menyhert | Stunts |
| Robert Mendoza | Digital Imaging Technician |
| Darryl Rue | Dolly Grip |
| P.P. Bringas | Electrician |
| Tania Espinosa | First Assistant Camera |
| Joe Webb | Gaffer |
| Leonard McLeod | Grip |
| Quaid Cde Baca | Steadicam Operator |
| Chris Clancy | Still Photographer |
| Tania Espinosa | Still Photographer |
| Rachel Pollen | Costume Assistant |
| Rachel Julia Rice | Costume Assistant |
| Rachel Antone | Costumer |
| Bari Gregory | Costumer |
| Jordan Law | Costumer |
| Bleu Borkowski | Key Costumer |
| Jackie Gudgel | Set Costumer |
| Allison Marrama | Set Costumer |
| Ned Thorne | Additional Editor |
| Edo Brizio | Colorist |
| Andria Myers | Picture Car Coordinator |
