Galileo, Steven J. Gould, Stephen Hawking, Copernicus and Charles Darwin would be an interesting batch....

Edwin Newman, Willard Espy, Samuel Johnson, Noah Webster and Robert Claiborne to debate the English language..

Immanuel Kant, G.W.F Hegel, Aristotle, A.N. Whitehead, and Edmund Husserl to see if ANY of them could make heads or tails of what the others were talking about...(boy I hate to stop at 5!)

Pat Robertson, Ayatollah Kohmeni (sp?), Pope Pius IX, Martin Luther and Pharoah Tuthmosis II ...just because I am a wicked fellow who likes to watch.