Leo is described as "cute" and "charming" on the surface, but dangerous on the inside. Leo is headstrong and dedicated to fighting for justice. Leo is determined in the search for justice and answers. The determination drives Leo to take risks. Leo has resentment towards the G Corporation, mainly for Kazuya Mishima, as they hold him responsible for their mom's death.  Leo is shown to be a somewhat anxious fighter.  Leo is also afraid of monsters. Headstrong, determined, charming, semi-childish. 