Roman was a Bacchus that lost his ability to feel pleasure and consequently mated with a Manta to transfer her stream of sexual gratification to his neurons.
It was believed that Samir was a type of bacchnalian Fae without classification, based on a tweet from Peter Mohan, co-Executive Producer/Showrunner of Season 1.
In Greek mythology, Dionysus (Bacchus in Roman mythology) was the god of the grape harvest, winemaking and wine, of ritual madness and ecstasy. His origins are uncertain, and his cults took many forms. He is a god of epiphany, "the god that comes", and his "foreignness" as an arriving outsider-god may be inherent and essential to his cults. He is a major, popular figure of Greek mythology and religion, and is included in some lists of the twelve Olympians. Dionysus was the last god to be accepted into Mt. Olympus. He was the youngest and the only one to have a mortal mother. His festivals were the driving force behind the development of Greek theatre. He is an example of a dying god.
The Bacchanalia were Roman mystery cults of the wine god and seer Bacchus, based on various ecstatic elements of the Greek Dionysian mysteries. They were almost certainly associated with Rome's native cult of Liber, and probably arrived in Rome itself around 200 BC but like all mystery cults of the ancient world, very little is known of their rites. Livy, the principal Roman literary source on the early Bacchanalia, names Paculla Annia, a Campanian priestess of Bacchus, as the founder of a private, unofficial Bacchanalia cult in Rome. Bacchanalian celebrations were, at first, open to women only.