Vincent appears to be a tall young man with toned skin colors;. He appears to be bald, with a stitched design on top of his head; maybe during the previous times being experimented on he has been experimented on his brain. He also appears to be constantly wearing a butler-like styled clothing; a black vest, white long-sleeved shirt, and black pants to match.
Vincent has an easy-going nature, especially around the kids. He is always happy whenever he is around the kids. Around Norman, he becomes his butler. Always following Norman's orders and becoming serious when he is given one, it is concluded he knows how to be mature at the right moments.
Skills and Abilities
It is shown Vincent can fight demons with just his fists. 
Vincent seem to be very smart in both combat and using medical knowledge to help out in the infirmary.
As the person who has saved Vincent from the farms back in Lambda 7214, he thanks Norman who has saved his life along with the others whom he saved. Thus, he, as well, calls him "Boss".
As part of the group that Norman had helped escape the experimentation farm, he has kept a close friendship to each and every one of them.