Sans is the elder brother of Papyrus and the firstborn to River Person and Gaster, and is the eldest out of the Dreemurr siblings. He has a pretty serious attitude most of the time, and is hardly seen in a state of relaxation. Being the smartest monster in the underground, Sans puts his high level of intelligence to use as the Head Royal Scientist in Hotland Lab. He enjoys working with machinery and studying the biology of the average monster soul. He is absolutely crazy for anime, and enjoys watching his favorite show, Dragon Ball Z (his favorite character is Vegeta!). If he's not with his family or at the lab, he can be seen at Grillby's, but not for the food! Sans has a height complex, and if you bring his incredibly short stature up at any time, he'll go Edward Elric on your butt XD. Sans suffers from Nyctophobia, which is the fear of the dark, Arachnophobia, which is the fear of Spiders, and Trypanophobia, which is the fear of needles or medicine needles. Sans' weapon of choice is a standard sword that he mastered via training with Asgore. The sword is stronger than any steel made and can pierce the toughest metals and materials..

[Sans doesn't sound like the average Sans. I don't see him with the Critikal esque impression at all. Sans does indeed have a semi low voice, but instead of sounding deep, its actually smoother with a slightly higher pitch]