Showtime’s original Penny Dreadful series—not to be confused with the more recent installment with Natalie Dormer—had a three-season run from 2016-2018. It borrowed its premise from the Alan Moore graphic novel League of Extraordinary Gentlemen, wherein characters from famous English literature serve as protagonists…
Source: io9 – Are You Still Pissed About How Penny Dreadful Ended?