According to herself, as a young child, DuBois was known for her cruel tendencies towards animals, having strangled a parrot, flushed a goldfish down the toilet and mortally punched a snake. This proclivity towards animal violence led eventually to her career as an animal control officer, a career which she took seriously, keeping a perfect success rate in capturing stray animals.
One day, DuBois was called by the owner of a prestigious Monte Carlo hotel and informed that a lion, a zebra, a hippo, and a giraffe had broken into the hotel. Spotting the perfect chance to finally track down the ultimate quarry, DuBois set out with her four enforcers, arriving at the hotel entrance only moments after the animals had fled the scene, lead by a lion named Alex. The hotel manager rushed up to meet her, but she instead struck him for throwing her off the animals' scent trail with his cologne. Setting down on all fours on the ground, DuBois tracked the animals in their path and set out with her four enforcers.
As she drove down the streets of Monte Carlo pursuing the escaping animals, who had taken to escaping in a large armored vehicle, DuBois spotted the giraffe, a male named Melman, whose head was sticking out of the armored car. Skipper's various traps failed to delay her and she gets ahold of the van. They briefly lose her after triggering Kowalski's nuclear reactor.
She later manages to catch them up on the buildings, and easily destroys the bananas fired by the monkeys, and grips Melman's neck as the helicopter is leaving. However, eventually, Alex managed to use his fingernail to cut off her instrument, which lands her in a pool.
Later on, she goes to the plane's crash site and discovers the animals ran away with the circus. She jumps on a train to Rome and when she arrives, she spots King Julien and Sonya on their date. DuBois steals a police bike but crashes it into a fountain and is arrested by the police.
Later she escapes from prison and regroups her injured men, managing to revive them with a song. She tracks the circus to the Alps and then to London and almost catches Alex but is tied up and shot out of a cannon by the penguins. She later ambushes the Four when they make it back to the Central Park Zoo. But before she could claim her prize, she is then discovered by the New York zookeepers, who assume she was returning the Four.
Near the end of the film, the mayor of New York presents DuBois with a check of one million dollars, but she tears it and says it was only about Alex. The audience cheers, but she seizes the opportunity to shoot Alex with a poison dart hidden inside a foam finger. However, the Circus has been alerted by Skipper and so they come to the rescue, with Gia saving Alex while the dart shatters a light behind him. DuBois' men were eliminated by the elephants and Sonya the bear on a Ducati motorcycle, the latter sending DuBois crashing into the reptile house. Emerging from the rubble as deadly vipers slither about, DuBois captures a fleeing Stefano and attempts to reach for her dart gun, which was stolen by Mort shortly afterwards. Alex and Gia manage to rescue Stefano, the former ending up with DuBois in free fall, right above the penguin habitat filled with vipers. DuBois swore that if she was going down, she will take his head. Alex summons some dogs with rocket skates which elevates him. He then fights off DuBois and throws her in his former habitat, where she is shot by Mort with a tranquilizer dart and sedated. The penguins then bound and gagged DuBois and her assistants and stow them in a cargo box to Madagascar, just like how Alex and his friends were shipped in the first film.
Personality and Traits
- "Hey, this lady’s really starting to freak me out."
- ~King Julien to Maurice regarding DuBois.[src]
A cold, calculating woman, DuBois was staunch in her ways, having no sense of mercy for her quarry when assigned to catch animals. DuBois was not without her pride, as she kept trophies of her successful assignments in catching animals on her walls: dog, cat and bird heads, taxidermy butterflies, mounted fish and lizards, and even the rear end of a large rat adorned her office, which sat close to the animal cages of the pound that she worked in. These trophies, however, paled next to her most coveted trophy of the hunt: a lion head, which she stood adamant to obtain in catching the “king of the beasts”. DuBois was strict to her men, but cared about their condition, if only to aid her in her hunts, and cared little for either humans or animals in general, having no regard for laws either, as she tangled with the Italian police in Rome.
A red-haired French woman, DuBois is thickset and compact with thin limbs and has a flat, short face with a long, pointed nose. DuBois keeps her appearances well, with an immaculate uniform, makeup and hair are always done, most notably her tendency to refresh her lipstick upon making a discovery. DuBois sports unusual strength, being able to break through concrete walls by charging at them, perform acrobatic feats of stealth, move with agility on all fours and track down animals just by their scent, being able to pinpoint exact details about them from just one bit of tracking.
Behind the Scenes
Chantel Dubois was voiced by actress Frances McDormand.
The song that Dubois sings to her men to inspire them, Non, Je Ne Regrette Rien (translated to English as I Regret Nothing), is hailed widely as the anthem of the French Foreign Legion. The song is about how you regret nothing because you no longer care about your old life; the only thing that matters, for good or bad, is your glorious new future (with the Foreign Legion). 
Revealed in the filmmakers' commentary featured on the Madagascar 3 disk, there was a cut scene where Dubois actually attempted to "seduce" the King of Versailles, unaware that it was actually the chimps. Some other cut scenes mentioned in the commentary included Dubois revving up a chainsaw as opposed to her regular saw, and a longer and much darker speech at the zoo. There were many cut scenes involving Dubois, most of which were cut for being too dark and disturbing.