The representations of religious tension between the polytheistic humans and the monotheistic Cylons in the Sci Fi (now Syfy) channel’s hit series Battlestar Galactica (2003–2009) is nowhere more evident than in the human “convert” to monotheism, Gaius Baltar, who struggles to proselytize his minority beliefs to other humans. Ancient Jewish literature also highlights the patriarch Abraham’s turn from a polytheistic past to a believer and follower of the one God. This article seeks to understand Baltar’s belief and actions in light of Abraham’s shift from polytheism to monotheism in ancient Jewish literature.