Luigi

Luigi Mario is the main deuteragonist of the CrazyMarioBros series. He is the younger brother of Mario.

Personality
Luigi is friendly, kind, and compassionate, though childish, cowardly, and easily scared. Luigi's impressionability results in him often starting the conflict in a lot of the videos.

Mario
Mario is Luigi's older brother. The two often get into fights and arguments, but are best brothers and have an unbreakable bond, with the two constantly looking out for each other.