out of the path of its sun together, or when he was under assault by equally powerful assailants such as Superwoman, Deathstorm and Alexander Luthor who had stolen multiple powers. Sinestro is also highly proficient in hand-to-hand combat and battle strategies, owing to his training as a former Green Lantern. He proves to be a physical match for Hal Jordan owing to these skills. Physical appearance The visual design of Sinestro, according to artist Gil Kane was based upon British actor David Niven. Other versions 52 Multiverse In the final issue of DC Comics' 2006-07 year-long weekly series, 52 #52, it was revealed that a "Multiverse" system of 52 parallel universes, with each Earth being a different take on established DC Comics characters as featured in the mainstream continuity (designated as "New Earth") had come into existence. The Multiverse acts as a storytelling device that allows writers to introduce alternate versions of fictional characters, hypothesize "what if?" scenarios, re-visit popular Elseworlds stories and allow these characters to interact with the mainstream continuity. The 2007-08 weekly series Countdown to Final Crisis (or simply Countdown) and its spin-offs would either directly show or insinuate the existence of alternate versions of Sinestro in the Multiverse. For example, Countdown #16 detailed that the Sinestro of Earth-51 has been murdered by the proactive Batman of his world in a crusade against its villains. Countdown spin-off series Countdown Presents: Lord Havok and the Extremists depicted a version of Sinestro in its third issue (2008) from an alternate world referred to as "Green Sinestro", depicted as a part of the villainous Monarch's army. This version has his original green power ring, but is no less vicious than his mainstream continuity counterpart and the official designation of his world is unrevealed. Elseworlds An alternate Sinestro appears in Batman: In Darkest Knight, fulfilling both his own role and that of the Joker, becoming unhinged after absorbing the mind of Joe Chill, as well as creating that world's Two-Face/Evil Star and Star Sapphire/Catwoman. Generations In Superman & Batman: Generations - an AU where all heroes are shown aging in real-time, Sinestro attacks Earth to try and eliminate Hal Jordan - who here went into politics rather than heroism, rising to the position of President in the 1980s, but is defeated when Jordan dons Alan Scott's ring, having realised that the rings actually have no vulnerabilities except what the user believes