kon

Birthday: December 30
Kon primarily serves as a comedic foil in the series. When not inhabiting Ichigo's body, his normal plushie body is treated with little respect and much disdain. The humorously cruel treatment he constantly endures provides comic relief in Bleach. One of the few people who shows him any respect is Chad, although Chad mostly ignores him. His plushie body is a knock-off of the main character from the popular TV show Carnivore Kingdom, named "Ponkichi," which happens to be Chad's favorite show. It was a prize from the shooting game at the Karakura Town Festival. Kon is often stepped on and torn, and Ichigo usually has Uryū Ishida repair the plushie. Uryū typically adds something unwanted or unnecessary when doing so, 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 Uryū for turning him into a doll.
Kon is quite perverted and frequently takes advantage of his form to get girls to hug him to their chests, though this rarely goes as planned. After Ichigo becomes less dependent on Kon to transform, 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. Due to the questionable origins of the ModSouls, the Soul Society ordered the destruction of all ModSoul pills, but Kon was mistakenly shipped out with regular soul pills, saving him from this fate. This experience fuels his belief that everyone should be given a chance at life and not be killed merely based on the circumstances of their origins.
His name "Kon," 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, which Ichigo agreed with but refused to name him that to avoid giving him satisfaction.
Theme songs: "Nichiyoubi Dansu" by Kuuki Koudan (Kon Theme #1) and "Bushman" by Rip Slyme (Kon Theme #2)