I would still hesitate to call Warlock an orc. He is human - only quite deformed. His eyes are blank yellow, his face is creepy, but he's human.

In fact, i just have to disagree with the whole posts. My opinion is that there is a HUMPLOAD of races in Dota 2, and the only actual groupings would be the Tinker-Sniper-Clockwerk trio and Huskar with Dazzle. Everyone else can be just... Anything. For instance, the humans, they may be from different races or nations. We'll likely never know. Creating a list like this in an universe like Dota 2's is almost useless.