Worked briefly as part of George Michaels security detail during a British tour, and even drove him around a couple of times. Embarrassing but true

Placido Domingo, I worked with him at the Royal Opera House when I was a child (singer, I would like to add that since my voice broke I haven't been able to hit a note!), he is possibly the most unpleasant, self-centered, mean spirited, imbecile I've ever had the misfortune to meet!
Will Carling the former England Rugby captain, this was at the time of the Diana affair, and he asked if I'd be prepared to swear in court that I was having a drink with him, and he wasn't involved in any secret trysts

Funny guy, really nice bloke.
A number of British TV personalities.
Here in Hungary a lot of famous TV personalities, and a couple of pop stars.
And my favourite Sir Ranulph Fiennes, the worlds greatest living explorer and one of my heros. Had a couple of G 'n Ts with him once in a hotel bar, what a man!
Ozzy