@Westover
Anyway, in equestrianism/eventing: Oli Townend. Can cut you dead and not respond to a greeting if he's not in the right mood, constantly scans the room for someone more interesting/richer to talk to and generally just a moody so and so. Considering he likes to emphasise how he didn't come from a rich or privileged background, he's remarkably disinterested in people from the same background.
I completely agree. I evented to a decent level (BE Intermediate) in the past, and met a lot of famous riders when they would take their young horses out at lower levels.
OT is a prick and is not well-liked on the scene at all, which, considering how generally friendly and nice eventing is, says a lot.
At the opposite end of the spectrum, William Fox-Pitt is utterly charming and lovely (as are his family and travelling staff: Jackie Potts is AMAZING and once lent me some plaiting thread - I felt quite star-struck!) and VERY handsome.
I also once accidentally bumped into Zara Phillips in a lorry park (like, LITERALLY bumped into her - I was carrying a pile of rugs and tack) and she was incredibly nice and friendly and helped me pick stuff up. I've met Princess Anne as well and, even though I am a die-hard republican, she and her family can stay. 
In other sports - Gregor Townsend (head rugby coach for Scotland) is an absolute delight. Very charming and friendly and has a very sharp and curious mind.