Used to work in tv and now in culture sector, so all my working life has been with 'celebrities' or 'famous' people
Off the top of my head....
can't describe how nice Brian May is. He is a diamond - as Anita Dobson. The way they look at each other is glorious to behold.
Matt Baker is very good at noticing show runners etc. and being nice to them.
Alice Cooper also a lovely man.
Michelle from Destiny's Child is batshit.
Holly and Phil are (sadly) not as lovely as you might think.
Eamon Holmes is a surprise treat.
Billy Connolly is very mesmerising and looks RIGHT into your eyes when you're talking.
Hairy Bikers - one is lovely, one is vile. I'll let you guess which.
Rolf Harris was deeply strange (even before all the Stuff came out about him)
I would have highly recommended having a drink with John Hurt before he passed.
Will Self is exactly as you would imagine.