Einstein and Nicola Tesla (to ask them how), Jimi Hendrix and John Lennon (to ask them why), Hitler (to ask him wtf was he thinking). But as these guys are all dead ....Terry Pratchett (I think I passed him once in the street in London), Rick Wakeman (I have actually met him twice and chatted briefly, but this was at gigs of his and you only get about 30 seconds), Steve Marriott .. oh no he's dead as well .. oh well. I like meeting most people (maybe not Hitler though after all).