Dragon

Little is known about the Dragons of Mortal Kombat. They are seldom mentioned, and there are only three possible known members of the race: Onaga, Orin and Caro. Onaga was proclaimed the Dragon King, although it is unknown whether he was given this title by his elusive brethren or whether it is self-proclaimed.

Onaga possess some similar physical characteristics to his possible brethren, such as having scales. Similarly to Orin and Caro, Onaga can breath fire. Onaga is able to raise the dead with a power given to him by his heart, and has made his army allegedly undefeatable because he continuously revives them when they are slain. This army was later uncovered by Quan Chi, and was used as the ultimate weapon of the Deadly Alliance. Although it is unknown where they originate from, the most likely place is Outworld. Dragons all lay eggs, and apparent from Onaga, even the males do. As there is little other trace of any other Dragons in the Mortal Kombat universe, it is possible that most of them were wiped out, similar to Cryomancers or the Saurians.

In Mortal Kombat: Armageddon, there are two dragons, resembling Chinese Dragons, with the ability to breathe fire and open portals to other realms. These dragons guard and aid the game's protagonist and antagonist, Taven and Daegon. Other than than the ability to breath fire, there is very little similarities to these dragons and Onaga, and it is unknown how these two species of dragon are related.