Bartolome is a former heir to a huge fortune. He is of Belle Morte's bloodline and a child vampire around the age of 12 or 13. At the end of Cerulean Sins, he chose to stay to help undo the damage he and Valentina inflicted on Gregory and Stephen, thanks to Musette. For the most part, he is rather well-adjusted given the propensity of prepubescent vampires to go insane over time. He speaks fluent Spanish and English. He came along with Musette to St. Louis purely out of boredom.