Sumo

Sumo is shown to be a calm and gentle dog. He is very kindhearted to those he perceives as good, such as his owner and Connor. While he does act defensively around Hank, he does not aggressively attack people or androids, which is demonstrated when he is quickly calmed by Connor after the android tells him that he is there to help. In one ending, Sumo is shown to be smart enough to realize Hank.