I did a little
digging and found out that apparently the CW is running these joint teasers featuring some of their shows (Supernatural is another one) and putting the Cult teaser in towards the end. Interesting way of promoting a new show, although the best thing might be to put it on after The Vampire Diaries. That didn't really work for The Secret Circle, though.
Anyway, Stacey Farber is on that Cult show, at least in a recurring role.