5. Flea

Game Appearances: Chrono Trigger, Chrono Cross

Original Gender: Male

Although he appears to be female in both dress and physicality (look at that rack!), Flea is actually a male - a fact that surprised players when revealed late in the game. Being a general in the Army of Mystics, he has some rather awesome gear including the Flea Bustier, which can only be worn by other males. As if one transformation wasn't enough, Flea also has the ability to turn into a bat. There's been no official word on the gender of his bat form.