Hopper

Hopper is the main antagonist in A Bug's Life.

A Bug's Life
In the film, Hopper is a feared grasshopper who is blind in one eye due to a scratch caused by a recent encounter with a bird. He leads his gang of grasshoppers, including his brother Molt and a restless, ruthless Thumper, who keep full control over the ants. Hopper, unlike his gang, does not underestimate the ants' strength; he knows that while weaker than the grasshoppers as individuals, the ants outnumber his gang a hundred to one.

During Hopper's first visit to the colony, the gang finds the food supply ruined, so he throws the blame on the ants and demands them to gather double the amount he has initially requested by the next season. When he is dissatisfied with the amount of offering the ants give him after a second chance, he usurps Ant Island and plots to kill the Queen after enough food has been gathered. After hearing from Dot about Hopper's plot, Flik and the circus troupe return to the island to rescue the Queen by putting his plan into motion. The circus bugs present their act in front of the grasshoppers to distract Hopper, who initially orders his henchmen to squish them, but later decides that they can use a little entertainment. After Manny takes the Queen for a magic trick, Hopper interrogates him to tell where she has went by strangling him, only to be cut off by a fake bird, that the ants have made earlier in the season, which comes down swooping toward him. Hopper is initially terrified at the sight of the bird, due to his fear of birds, but soon discovers the bird is fake. Hopper takes Dot hostage again, and interrogates the ants, including Princess Atta, to find out who is responsible for the ruse. Flik then confesses that he is the one behind the plot, and Hopper signals to Thumper to savagely beat up Flik until he orders him to stop. Hopper then declares how dangerous ideas can be and that ants are mindless, soil-shoving losers, put on this earth to serve the grasshoppers. But then, Flik manages to stand up to his feet and revolt against Hopper, revealing that ants are not meant to serve grasshoppers and are strong in number, and he causes the entire colony of ants to stand up to the grasshoppers. As the colony charges towards Hopper's gang, they abandon their leader and flee, leaving Hopper to be seized by the ants and trapped in a circus cannon, right at the time when it starts to rain. Hopper then sees his chance to escape and shoots himself out of the cannon towards Flik, whom he takes hostage as he flies away with him in revenge of being humiliated. The circus bugs chase after them to try to save Flik, but they only succeed in pulling off one of Hopper's antennae. Atta intervenes and swipes Flik away from him. Hopper chases after the two across the stream. He corners Flik near a bird's nest, strangles him, and declares how so much time has been wasted by Flik's tricks and that he will rally more grasshoppers and return next season. A bird pops out from the nest, but Hopper, believing the bird to be another one of Flik's tricks, taunts the bird until it shrieks at him. Now realizing that this bird is the real one, Hopper tries to flee, but the bird, however, turns out to be faster than him as it catches him in its beak in one swift move and takes him to its nest, where he is presumably eaten.

It's Tough to Be a Bug! 3D show
In the show, while Flik believes that humans are the bugs' friends, Hopper believes that the humans are the bugs' enemies.

Trivia

 * Hopper is the first Pixar villain to die.