Doraemon


 * Doraemon, is the main protagonist of the series, is the titular robotic cat sent back in time by Sewashi to aid Nobita. He possesses a fourth-dimensional pocket from which he can acquire various kinds of futuristic tools, gadgets, and playthings from a future department store. Doraemon originally had ears but they were bitten off by a robotic mouse in the 22nd century. As a result, he developed a morbid fear of mice despite being a robotic cat, because he was suffering musophobia. He also has the tendency to panic during emergencies, characterized by him frantically trying to pull out a very much-needed tool from his pocket, only to produce a huge assortment of unrelated household items. Still, Doraemon is very friendly and intelligent, not to mention long-suffering because of Nobita's antics.
 * Doraemon's physical appearance changed as the manga progressed. At first, he was predominantly blue, with a blue tail, a white stomach, and flesh-coloured hands and feet. He also stooped, and had a body much larger than his head. In later issues, he sported a smaller body, white hands and feet, and a red tail--the appearance most identify him with today.