Onscreen Factoid: He's an interesting one, that David Bowie. Over the years he's managed to display more personalities than all of the Spice Girls put together. This is perhaps his most famous alter-ego: Alien Rockstar Ziggy Stardust. Despite only playing the part for a few years Bowie's Ziggy influenced any number of artists from Prince to Green Day to Duran Duran. Not only that, but 'Ziggy played guitar' apparently. When was the last time you saw a Spice Girl do that?