Kon

コン

Kon mainly acts as a comedic foil in the series; when he is not inhabiting Ichigo's body, his standard plushie form receives little respect and considerable disdain. The humorously cruel treatment he constantly endures provides comic relief in Bleach. Chad is one of the few people who shows him any respect, though Chad mostly ignores him. His plushie body is a knock-off of "Ponkichi," the main character of the popular TV show Carnivore Kingdom, which happens to be Chad's favorite show. He was won as a prize from the shooting game at the Karakura Town Festival. He is constantly stepped on and torn apart, at which point Ichigo has Uryū Ishida repair the plushie. Uryū usually adds something unwanted or unnecessary during repairs, such as dressing Kon up like a designer doll. Uryū also sewed a Quincy cross on the back of Kon's head as revenge after Kon attacked him for turning him into a doll.
Kon is quite perverted and often exploits his form to get girls to hug him to their chests, which rarely goes as planned. After Ichigo becomes less dependent on Kon for transformation, Kon comments that he wouldn't mind taking Ichigo's body out for a spin again, saying he'd like to go peeping and pulling up skirts because, as he puts it, "It's [ichigo's] reputation that gets sullied." Kon is very fond of Rukia, calling her "sister," though this extends to basically any pretty girl.
Kon is a special type of soul pill called a "modified soul" or "ModSoul." When inserted into a body, an aspect of the body is made superhuman, which in Kon's case is enhanced speed and strength. Because of the shady origins of the ModSoul, the Soul Society called for the destruction of all ModSoul pills, but luckily, Kon was shipped out with a load of regular soul pills by mistake. This gives rise to his belief that everyone should be given a chance at life and should not be killed merely based on the circumstances of their origins.
His name "Kon", which was given to him by Ichigo, comes from the word "Konpaku" within the term "Kaizou Konpaku," the Japanese name for "modified soul." Kon wanted his name to be "Kai" from "Kaizou" because it sounded cooler, with which Ichigo agreed, but at the same time refused to name him that so as to not give him any satisfaction.
Theme songs: "Nichiyoubi Dansu" by Kuuki Koudan (Kon Theme #1) and "Bushman" by Rip Slyme (Kon Theme #2)