Darkside:

Half-Orcs are almost exclusively the result of an Orc raid on a Human village. They are not terrible-looking, having only the squinty eyes, pronounced canines and coarse hair of an orc, but the innate Orcish poor temper is passed on to these offspring. They are much better behaved than Orcs, and do not have the homicidal hatred for other races that Orcs do (unless they have been raised by Orcs, and then you will see them only as your foes). They are somewhat dull-witted, and are not terribly patient, but they are tough as nails and are relentless in battle. Having a trustworthy Half-Orc companion is like having your own personal army. They excel in all things martial, especially in the Witchunter class, where their instinctive fear of magic can be used to advantage. Half-Orcs are almost universally mistrusted, which is quite unfortunate since they are not horrible by nature, and so they must continually prove their worth to others.