I got a weird idea today, so I followed through and come up with this little One-Roll gizmo that generates NPC descriptions. There's no stats or anything, just a short list of quirky things that you can mention when designing a random guy to talk with the party. A little explanation, then I'll post the stuff.

The chart is arranged like this:
0x Width zero means default, what the quality is if you get no sets.
0x is Cultural Dominant. Whatever is "average" for the region you're in.
2x is Culture Recessive, a rarer trait but not uncommon
3x is Culture Uncommon, something you don't see often
4x is Culture Unusual, a stand-out trait
5x is Culture Rare, most likely a foreign or very unusual quality

Then for Height:
x1 is Eye Color
x2 is Hair Color
x3 is Hair Style
x4 is Complexion
x5 is Style of Dress
x6 is Speech Pattern
x7 is Posture
x8 is Age
x9 is Facial Structure
x0 is Size

Then there are 4 "event" charts for special quirks and things.

Obviously, the chart will need to be reworked for the region you're in. I designed my example one for the Uldholm region in REIGN, since I'm running a game there. So for Eye Color, Brown is default, Hazel is recessive, and then Blue, Green, and Violet get the rest. If you want One Roll Elves, you might do Green default then Blue, Brow, Violet, Red or something.

Also, this isn't a magic NPC generator. It's intended purpose is to generate a few quality descriptors to help make the NPC memorable immediately. That's why most non-sets default to something common. I would probably roll 6 dice or 10 dice, drop off extra singles and keep just the sets and one or two singles.

You might also notice oddities like a person can't have Green eyes and Glasses. I call it a feature. You don't want all your details clustered: it's not realistic, but it's good for story. If Bob McDinda has Green eyes, an eye tick, and gem-studded glasses then he's going to be remembered as "that guy with the eye-stuff." Better to have some variety. If you do want glasses + eye color, try going for a big set then breaking it up. So instead of Green eyes, you get Blue eyes and Glasses.

One Roll Characters

Detail Charts

Physical Quirks
These are oddities of the body that can give unnatural or foreign qualities to a person.
1x1 Heterochromia - Each eye is a different color (blue and brown usually)
1x2 Dyed/Unnatural - Hair is shock-white or a dyed color (blue, violet, cherry red, etc)
1x3 Rebellious Style - Hair is either bald or rebellious (mohawk, spikes, mullet)
Alt 1x3 Over-Styled - Hair is extremely long or greatly styled (lots of curls, straightened, mixed colors)
1x4 Ghostly - Skin is translucent white, though may not be true albinism (total lack of pigment)
1x5 Rags - Clothes are unkempt and in poor condition
1x6 Vocal Tick - Some sort of vocal tick like a stutter, lisp, or whistle
1x7 Unusual Stance - Either stand oddly (at a slant, bent over forwards, etc) or has a hunchback or injured/missing legs
1x8 Child - Character is a child, from teen down.
1x9 Deformed/Scar - Either a prominent scar or deformation is obvious (broken nose, burns, eyepatch, etc)
1x0 Dwarfism/Giantism/Obesity - A size abnormality on par with extreme height difference or extreme weight

Behavioral Quirks
These are oddities in the way the character acts. Can make the character seem like he's hiding things, or nervous about something.
1x1 Shifty - Always looking around, maybe in a paranoid fashion
1x2 Twirling - Plays with hair, twirls it, runs hands through it
1x3 Groomer - Always brushing hair, putting on make-up, or fixing cloths
1x4 Scratches - Constantly seems itchy, always scratching at something
1x5 Fidgety - Buttons and unbuttons things, ties knots in cords, hands in pockets then out then in again
1x6 No Silence - Can't stand silence, so always whistling, humming, mumbling, or trying to talk
1x7 Dancey - Can't stand still, shifts stances constantly and always leaning or sitting on various things
1x8 Act Your Age! - Character acts like the opposite age (pick one for middle). Either seems mature or acts childish
1x9 Ticks - Face twitches unconsciously. Alternatively, may suck at teeth or chew things.
1x0 Limp - Either a limp, or a jerky way of moving, or some other movement-related tick

Accessories
Instead of oddities in the character, there's something distinctive in their manner of dress. These add style and detail to a character.
1x1 Eyeware - Monocles, glasses, sunglasses
1x2 Pins - Hair pins, braids, beads, brooches
1x3 Hats - Of various sorts, also headwraps
1x4 Tattoos - Ink, piercings, or scarification in an interesting design. Birthmarks also apply.
1x5 Cape - Or shoulder pads or cloak or boa or scarf. Some kind of extraneous, decorative clothing
1x6 Melodic - Either the voice is naturally melodic, or there are bells/chimes/etc hanging on the clothing
1x7 Bags and Belts - Either carrying an unusual bag or a thick belt (maybe with pouches)
1x8 Authority - some sign of office, maybe a badge or a ring or medallion.
1x9 Make-Up - distinctively applied to create a stunning effect1x0 Cane - Some kind of staff, cane, glass orb, or other held accessory. A decorated sword scabbard also works.

Details
Can't stand to just ditch extra singles? Try binding them onto different numbered sets and singles to add details! These are things players can find out if they ask for more information, but are subtle things that shouldn't be part of the initial description.

1x1 Precious metals - Something is made of pure gold or silver
1x2 Gem studded - Something has sparkly stones in it (real or fake?)
1x3 Fine Silk - Something is made of very nice cloth, leather, or wood (depends on item. How silly would a cloth cane be?)
1x4 Colorful Blend - Something has a rich blend of colors
1x5 Marked - Some item or the person has a mark (mole, small tatoo, little blemishes)
1x6 Scuffed - Something shows signs of obvious wear and tear
1x7 Repaired - Something shows signs of being mended (sewing stiches, a patch, nails, or a weld)
1x8 Secrets - Something shows signs of secrets (bulge in coat pocket, break in the cane where the sword slides out)
1x9 Magic - Something shows signs of minor magic (perhaps a charm of some sort)
1x0 Gift - One item is of exceptional quality far beyond this person's means