6. Mabari Hound
Depending on your chosen origin, this faithful war hound from Dragon Age: Origins can stick by your side either from the beginning of the game, sticking with your party throughout your endeavours to save Thedas from the invading Darkspawn. No matter the danger or moral implications, your trusty mabari will charge in without hesitation, tanking for your party with fairly heavy DPS. In addition to striking fear into the hearts of one's enemies, the mabari is great for a variety of other useful tasks, including but not limited to: party banter, finding cake, cleaning the blood of your foes off your face, healing the player slightly, peeing on objects for stat bonuses, and stealing a witch's underwear. Really, what more do you want from a dog?