What could be sweeter than a father and child reunion? Well, if Dad is Being Human's brutal bloodsucker Bishop (Mark Pellegrino) then, basically anything! Bishop may have been decapitated last season by Aidan (Sam Witwer), the vampire he sired centuries ago, but dead or not, on Feb. 20 he's back. The onetime Boston vampire capo returns to Syfy's addictive supernatural show as a hallucination to haunt the troubled Aidan. He's also seen in flashbacks, including during World War I, as pictured above.