I have a confession: I am not a roleplayer, yet I feel the need to create a backstory for every single one of my characters, from the mighty main to the lowly banker alt who sits comfortably in Stormwind. I do not really know why. Maybe it is the storyteller in me, the sheer boredom, or the 60 ounces or so of various energy drinks that keep me up at night, but I begin to imagine the details of my characters, even going so far as to create a web of connections between them, as if when I'm not playing, they are banded together, battling side by side as brothers and sisters in arms.
A main example is my main and all the human alts I play on. There are only two at the moment, but a third shall arise, of the wolfish variety, come Cataclysm. Their story? All of them are brothers, my death knight being the eldest, a once-accomplished paladin who fell during the purging of Stratholme, being one of the very few against it. My main warrior is the middle child who was the least likely to accomplish anything of the three brothers but fought nonetheless as part of the Stormwind guard, before becoming a mercenary for hire. The newest addition will be a worgen rogue, the long-presumed-dead, sickly little brother who was astute in the arcane and was taken under tutelage of a sorcerer in Gilneas before being infected as a worgen. He will return instead as a quick and nimble character, one of the few worgen who likes his new form.