How you make a character that is really dumb, endearing enough to keep playing as them and not become a joke that will run out of steam very quickly?
I'm going to be playing on a superhero campaign soon that kinda could allow me to play this kind of character, someone that is dumb as rocks with a gold heart and that speaks in thirdperson of himself and refers to others by their names when talking to them.
Any advice on how to play a character like this? And any ways to avoid falling into it becoming a single one-off joke that will be better to replace eventually?