| 角色 | 演员 |
| Léon | 让·雷诺 |
| Mathilda | 娜塔莉·波特曼Natalie Portman |
| Stansfield | 加里·奥德曼Gary Oldman |
| Tony | 丹尼·爱罗Danny Aiello |
| Malky | Peter Appel |
| 1st Stansfield man | Willi One Blood |
| 2nd Stansfield man | Don Creech |
| 3 rd Stansfield man | Keith A. Glascoe |
| 4 th Stansfield man | Randolph Scott |
| Mathilda's Father | Michael Badalucco |
| Mathilda's Mother | Ellen Greene |
| Mathilda's Brother | Carl J. Matusovich |
| Fatman | Frank Senger |
| Tonto(as Lucius Wyatt 'Cherokee') | Lucius Wyatt Cherokee |
| Bodyguard Chief | Eric Challier |
| Mickey | Luc Bernard |
| Old Lady | Jessie Keosian |
| Receptionist | George Martin |
| Mathilda's Taxi driver | Abdul Hassan Sharif |
| Leon's Taxi driver | Stuart Rudin |
| 1st Policeman | Kent Broadhurst |
| 2nd Policeman | Tommy Hollis |
| 1st Security man | Peter Linari |
| 2nd Security man | Johnny Limo |
| Kid's Leader | Danny Peled |
| Pauly | Seth Jerome Walker |
| Cigarette Kid | Michael Mundra |
| Ball Kid | Alex Dezen |
| Orphanage Headmistress | Betty Miller |
| Swat Chief | Geoffrey Bateman |
| Swat Hostage | Arsène Jiroyan |
| Doctor | Peter Vizard |
| Stairway Swat | Joseph Malerba |
| Important Jogger(as David Butler) | David W. Butler |
| Client#1 (as Robert Lasardo) | Robert LaSardo |
| 3rd Security Guard | Steve Gonnelo |
| Subway Rapper(as Willie Stiggers Jr.) | William James Stiggers Jr. |
| Uniformed Guard | Anthony Ragland |
| Girl | Crystal Michelle Blake |
| DEA Security Guards | Sonny Zito |
| Cop | Rocky Hernandez |
| Security Guard | Randy Pearlstein |
| Policeman | Trevor Walace |
| Bodyguard | Keith S. Bullock |
| Newspaperman | Fred Fischer |
| Secret Service | Peter Justinius |
| Jogger | Denis Bellocq |
| CIA Agent | Thomas Delehanty |
| Fatman Bodyguard | Ed Ventresca |
| Chinatown Boss | Wallace Wong |
| Chinatown Boss' sidekick | Cary Wong |
| Bellhop#1 | Amimul Rolly |
| Bellhop#2 | Mohammed Rashid |
| Manolo | Adam Busch |
| Tony's Barber | Mario Todisco |
| Girl Chaser | James Melissinos |
| Stansfield man(as Jernard Burkes) | Jernard Burks |
| Stansfield man | Matt De Matt |
| Swat1 | 萨米·纳塞利Samy Naceri |
| Swat2 | Christophe Gautier |
| Swat3 | Junior Almeida |
| Swat4 | David Gregg |
| Swat5 | Michel Montanary |
| Swat6 | Hervé Husson |
| Swat7 | Didier Legros |
| Swat8 (as Marc Andreoni) | Marc Andréoni |
| Swat9 | Gilles Kleber |
| Swat10 | Junior John Levis |
| Bodyguard1 | Tony Sauraye |
| Bodyguard2 | Thierry Maurio |
| Bodyguard3 | James Fahrner |
| Bodyguard4 | Daniel Schenmetzler |
| Cameo Appearance(long version) (uncredited) | 让·雨果·安格拉德Jean-Hugues Anglade |
| Jimmy, SWAT Team Member (uncredited) | Michael Wehrhahn |
| Mathilda's Sister | Elizabeth Regan |
| Student(uncredited) | Alyssia Dujmovich |
