An old frenemy returns to the "Sanctuary" in "Chimera," and I'm not talking about Nikola Tesla.
Yes, everyone's favorite snarky vampire (played by Jonathon Young) is back in the episode, which airs on a special night--at 9 p.m. Nov. 29 on Syfy. He and Helen Magnus (Amanda Tapping) undertake a dangerous mission when the Sanctuary computers are attacked.



