"Vlad"
Season 4
Episode 8 (2001)

Lexx is a series of about three space travelers on a ship that is basically a giant insect traveling to different worlds. In reality though this being a sci fi program in the late 90's/early 2000's the real premise is to put sexy clothing on a hot female and then give her reasons to run around. The hot female of the show Xev is played by Xenia Seeberg.

In this episode which is the second part of a two-part story arch involving the crew going to Earth and visiting Transylvania, crew member Stan gets hypnotized into inviting three witches on to the Lexx who then steal Kai's Proto blood and uses it to resurrect a vampire named Vlad.

Vlad played by the late former Bond girl Minna Aaltonen then proceeds to turn two out of the three crewmates via biting them as her saliva has hypnotic powers.

In the end we find out that Xev is actually immune to Vlad's bite and tricks her into letting her guard down so she can attack her and push her into a cryochamber freezing her.