Orc

While they differed greatly, orcs shared certain physical qualities. Orcs of all kinds usually had stooped builds, grayish skin or green skin, and coarse black hair, with low foreheads, reddish eyes, and faces of porcine appearance that featured large lower canines similar to a boar's tusks. They also had wolf-like ears that were pointed on the ends. Orcs were roughly the same size as humans and similar humanoids, though usually typically larger.

Orcs had poor temperaments and were given to anger more easily than some races. Easily offended and impatient, orcs generally preferred violent solutions and rarely considered multiple ways of approaching a problem. However, in spite of this, many orcs were excellent at getting results, since they were creatures of action, not thought. Some exceptions to this profile did exist, however, such as the famed King Obould.Traditional orcish culture was extremely warlike and when not at war they were usually planning for it. Most orcs approached life with the belief that to survive, one had to subjugate potential enemies and control as many resources as possible, which put them naturally at odds with other races as well as each other. This belief was spurred in part by Gruumsh their god which taught that all races were inferior to the orcs.

Gruumsh was the patron god of the orc race and greater god of the orc, He was named He Who Never Sleeps for he was said to never tire,and symbolized with an ever-open eye to represent the orc belief that he watched over them all, judging the worth of each and every one of their kind. Gruumsh created the orcs and guided their destiny with the aid of his divine subordinates, ruling over orcish mortals and gods alike as their unquestioned patriarch. Long ago he swore that orcs would rule the world, and since then had driven his people to wage endless holy war in the name of his divine wrath.

The first legends of orcs told of the wars between their primary god Gruumsh and Corellon Larethian, the creator of the elves. The elves told of how Corellon defeated Gruumsh and took his eye. But many orcs denied this charge, saying that he always had the one eye and that Corellon cheated with magic because he couldn't win in fair combat.Orcs were not actually native to Toril, but migrated from elsewhere to different parts of the world on several known occasions.

Half Orcs: Simalair to orc's in build their are smart then other orc's. For more info on them DnD 5e players hand book.

For more info:MoM book 5e