Rocket

Subject-89P13 is a raccoon who was genetically and cybernetically modified by the High Evolutionary (Herbert Wyndham), giving him enhanced intelligence and the ability to speak. Naming himself Rocket, he befriended other fellow experiments believing they would soon be allowed to live in peace on a new planet called Halfworld. While aiding the High Evolutionary in perfecting his experiments, Rocket discovered that he, along with his friends, were simply "worthless creatures' and were all slated to be killed. Rocket attempted to free his friends, only for the High Evolutionary to kill them all in front of him. Rocket then attacked his former master, mutilating him. Afterwards, Rocket boarded a ship and fled into the cosmos.

Due to the trauma and guilt surrounding the death of his friends and the inhumane experiments done to him, Rocket became bitterly, even bitingly sarcastic, foul-mouthed and cynical, as well as generally misanthropic, but in recent years seems to have adopted a more calm and temperamental demeanor. He is also easily enraged and extremely aggressive, which, in turn, makes him exceedingly trigger-happy with an innate desire for violence. Despite his toughness, he also possesses a cruel and slightly morbid sense of humor. Rocket hates being called a 'raccoon' due to its association to a common Earth animal that eats garbage.