On Thursday's episode of The Vampire Diaries, we'll delve into the past of Katerina. But we'll also meet someone new in the present:

His name is Luka and he'll take an instant interest in Bonnie... much to the chagrin of Jeremy, who is trying to work some game on Elena's BFF in the clip below. And we don't just mean the game of pool, folks!

Remember to check out a few still images from "Katerina" HERE, and then take a minute out of your day to watch the following sneak peek. Should we trust this new student?

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.