Bartholomew Oobleck/History

So far, nothing of Bartholomew's past has been revealed yet. It is only known that he is a professor of Beacon Academy (indicating he is probably a Huntsman) in charge of a type of history class.

A Month Into Classes
Jaunedice, Pt.2

About a few weeks into the school year, Bartholomew is going into detail about the aspects of the Faunus War, zooming around the classroom and asking students about details on what happened during this time period and why. For example, he originally asked for a revolutionary battle at Fort Castle (the answer he got from Weiss Schnee), and then questioned Jaune Arc about why they were successful. When both Jaune and Cardin Winchester were unable to come up with sufficient answers, Pyrrha Nikos and Blake Belladonna answered it for them. He still told them to see him after class before rushing into his lecture again.

After class, he lamented on how the two boys were having trouble in his course, and wondered if they were uninterested or stubborn in learning. He went on to remind them of Beacon's prestigious acceptance and how they needed to learn history or doom themselves to repeat it before giving them extra homework and zooming out of the classroom.