Very big, extremely strong, human (probably) but may be some ogre in his ancestry, male, age uncertain (he doesn’t remember), normally carries a VERY big stick
Ugg is not the brightest of people - in fact he’s very stupid (suggest lowest possible Int for a sentient creature). He is reputed to be the only person ever to be expelled from the militia for stupidity (couldn’t get his head round the concept of marching). His idea of a clever battle plan is to hit somebody on the head with a big lump of wood.
Ugg is basically a mercenary (of sorts) and general strong-man, taking almost any job that requires lots of muscle and not much brainwork. He can be hired quite cheaply because shiny objects, like coins, tend to impress him. Most of his skill is in his "natural talent" for hitting things.
Ugg can be an efficient and single-minded fighter but tends to ruin complex plans (he simple doesn’t get the idea)
Ugg has long since forgotten his real name. Initially people started using "Ugg" as a derogatory term because he says it a lot, and eventually it just stuck.