Well the official casting info for episode seven is here http://www.deadline.com/2013/06/star-wars-cast-details-unveiled/ What ideas do the descriptions give you for new characters for fanfic. A young man aged between 20 and 25, witty and smart, fit but not classically handsome, Man in late twenties, also fit, but this one is handsome and confident. Late teenage girl, independent, good sense of humour, also… physically fit . Second young female, also late teens, tough, smart and physically fit. Man in his forties, obviously physically fit, this one is a military type. A man of around thirty or so, this one is an intellectual type. Finally, a guy aged around seventy, strong opinions and tough. It looks like the only older female character we'll get is Leia.