Big Baby is the titular character protagonist from Big Baby.
Big Baby, as his name implies, is an abnormally large baby about the size of an average adult. He helps people out in all kinds of situations in every short of the series and his actions make him look like he knows what he is doing but he actually does not and really does it all out of curiosity. Since he is a baby, he can't speak English and when he does speak it sounds like interjections. However, some people seem to understand what he says in some of the shorts, such as in Rookie Cop he spoke through a megaphone at a wanted criminal and the criminal replied with"Alright, I'm coming out!"
A running gag that Big Baby does at the end of every short is that he nibbles on anything he is rewarded with or whatever he sees that he desires to chew on.
Big Baby wears a very light blue t-shirt and a white diaper. He has a few black strands of hair and blue eyes.