Fear is a major character in the 2015 Disney•Pixar animated feature film, Inside Out. He is a self-declared coward and one of the five emotions inside the mind of Riley Andersen. He appears to be unsure of himself, an emotion that matches his name.
Vote which fictional character would naturally fit in-universe with a big-named franchise! No time-travel, no interdimensional crap, no "Pooh's Adventures", they would just exist in-universe.