Allison is a short, pert, perky, black-haired, human . . well, girl, really.  She's is obviously chatty, seems rather cheerful, and is usually smiling.  Often (or at least some of the time) she displays a sharp wit (that in some cases may bite too deeply).

In some ways, she seems very naïve in that she doesn't seem to know much of the world at large.  In other ways, she shows an insight and awareness that just seems out of place.

She wears studded leather armor; like her hair, it is black.  She wears leather gloves cut so the fingers are exposed -- the gloves are black.  Her boots; black.  It seems she likes the color black.  If it weren't for her personality, one might think she is a brooding, moody teenager . . . or in mourning . . . but again, these assumptions are readily contradicted by surface signs of her disposition: upbeat, positive, smiling.

She is armed with a sword and a crossbow.  She also carries a backpack.  (Of course, it's black . . . )

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BUT OVER TIME --

Since the bastards' showdown with Yolo Barle, Allison's demeanor has changed.  She is less moody, less flighty, and less frivolous-seeming.  Whereas before she could easily be dismissed as someone not to be taken seriously, it appears that the encounter with her father was in some way cathartic and transformative.

She's still cute, perky, bubbly, and smiley.  And she's also still an obvious fan of the color black.