Ummm... No, not an energy vampire. It was an ex of Shal's who could... visualise through walls (he could show projections of what was inside a fridge, or a vault). The whole plot was trying to get a computer chip (with information on the DNA strand for "free will") out of a fabrege egg, before Eckhart does.

I haven't seen any of S2, it was just a random episode on a tape that a friend of mine let me borrow. It was just amusing to remember just how incredibly slashy this show is, and just how little actual "quality" of a TV show will affect my enjoyment of it.