Known as the Cigarette Smoking Man until his name was finally revealed (or was it??), CGB Spender was Agent Mulder’s archnemesis (and father—it’s complicated). CSM was a major player in the government conspiracy group known as the Syndicate, whose secrets he ruthlessly protects over the span of the series and the films. At the end of the series run, he goes into remote hiding but finally reveals when aliens plan to invade Earth (in 2012) before he is killed in a missile strike. Or was he?? No, he totally was.