Professor Helena Xagliv is the Professor of Art History at Friedkin University.
She first appears in Mystery, Incorporeal. Due to her name being "Vilgax" spelled backwards and her wig resembling Vilgax's tentacles, the heroes mistake her for being Vilgax in disguise and assume her to be the villain of the episode.
In Charm School, when Hex becomes a teacher, she flirts with him and tries to asks him out for tea. He becomes disgusted at the thought. After he's turned into a totem by Charmcaster, she asks where Hex is.
- Mystery, Incorporeal (first appearance)
- Charm School
- Third Time's a Charm
- The Most Dangerous Game Show (cameo)