Melanie Conder is the younger sister of Sheraleen Conder (later known as Sheraleen Mulvaney, then Sheraleen Donovan).  She is fun-loving, somewhat rebellious and full of confidence.  She claims to be ambitious but lacks direction.  She has a cruel streak and can often say hurtful things.  She and Sheraleen do not get along very well.  They have many arguments.