Mario (SMG4)

Mario is the main protagonist of the SMG4 series, along with the character SMG4, and has been in every episode to date.

Personality
SMG4 Mario is very different from how Mario actually is in real life, him being much more re#$$$ed and careless. Not just that but he also has an obsession with spaghetti, constantly eating it, buying it, searching it online, and much weirder stuff,too. He has been shown to favor spaghetti over his or his friends lives and will do anything just to get a single plate of the stuff. Despite these attributes, he is a loyal friend and usually helps his friends out in their times of need, having saved the day in countless episodes as his role as the "hero" in the show.

Big Mustache and Obesity
Mario has been shown very frequently throughout the show to have a big mustache that varies in size depending on the circumstance. This is supposed to make Mario look dumber and further display his stupidity. He usually has a regular big mustache, but it has been known to grow even more if he becomes very excited to the point of him creating the Mustachultimum. Mario is also extremely fat (although it isn't shown) and is mocked for it (usually by SMG4). It has, however, come in handy at times, typically when he is in combat and the fat acting as a barrier to things such as bullets and also when it is used to crush people (typically Toad).