Book excerpt: The BBC America series Orphan Black (2013-2017) won acclaim for its compelling writing, resonant themes and innovative special effects. And for the bravura acting of Tatiana Maslany, who plays an ever-growing number of clones drawn into an increasingly dangerous world of cutting-edge science, corporate espionage, military secrets and religious fanaticism. Heir to pioneering shows centered on strong female characters, such as Buffy the Vampire Slayer, Dollhouse, Lost and Xena: Warrior Princess, Orphan Black models the current Golden Age of serial-form storytelling, with themes of identity, bodily autonomy, gender and sexuality playing against corporate greed and its co-opting of science. This collection of new essays analyzes the diverse clone characters and the series, covering topics including motherhood, surveillance culture, mythology, eugenics, and special effects, as well as the science behind cloning.