i havent met him first hand, but Ross Kemp comes in to our office quite alot due to him doing business with my boss. always seems a down to earth guy, and whenever they go out he's happy to do autographs / photos.
also the DJ Gareth emery comes in every now and again. same story, down to earth and approachable.
met "comedy" Dave Vitty at a folk face gig, and chatted to him for a while about the Chris Moyles show and general stuff. seemed a genuine nice guy.
i used to work in a club in Sheffield where alot of bands played during the mid 90s. met various brit pop bands, as well as all girl rock group L7, who surprisingly from their punky attitude were really nice and chatty to a lowly cloakroom attendant.