Characters: The Professional
Leone "Léon" Montana
A mysterious assassin living alone. He ends up 'adopting' his young next-door neighbor after her family is murdered.
- Adorkable: Just look at him watching movies and playing with Mathilda.
- Anti-Hero: He's a decent enough guy. But he still makes a living by killing people.
- Badass Longcoat: Covering an even more badass rig for his pistols, silencer, spare magazines, grenades and bolt cutters.
- Book Dumb: He can't even read before he takes in Mathilda.
- Celibate Hero: Has not had a girlfriend since his last one died in the old country.
- Consummate Professional: Proficient with everything from his bare hands to explosives, doesn't drink alcohol, doesn't leave witnesses or evidence, lives off the grid, doesn't form emotional attachments and, aside from occasional trips to the cinema and tending to his plant, seems to have no life at all outside of professional killing.
- Cool Shades: Some badass circle shades.
An intelligent and tough young girl who becomes Léon's protégée following the death of her family.
- Cynicism Catalyst: Mathilda doesn't give a damn about the rest of her family — but the bastards who killed her little brother must die.
A corrupt DEA agent on drugs who slaughters Mathilda's family.
- Dangerously Genre Savvy: Manages to outwit the protagonists on several occasions, getting the drop on both Mathilda and Leon at separate points in the film.
- Dirty Cop: They don't make 'em much dirtier than this. Is involved in drug running (and apparently likes to sample the product) and will kill just about anyone who gets in his way.
- Large Ham: Oldman delivers a wonderfully over-the-top performance, to the point where some people consider him to stray into Narm territory at points.
- Rabid Cop: One of the worst in Western cinema. Makes Harvey Keitel in Bad Lieutenant look like Corporal Carrot.