If his name and his stately, Americanized accent do not immediately ring a bell, Mr. Jones is �" for the moment �" better known as the son of David Bowie, the glam rock star who populated his own parallel worlds with sci-fi alter egos like Ziggy Stardust and Halloween Jack, and who raised his son under the otherworldly name Zowie Bowie. Having reverted to his birth name some 20 years ago, Mr.