Olivia Williams is a babe :D
I nearly spoke to her by accident once, and got a big smile for it...
(We were walking past each other in the street, I thought I knew her, opened my mouth, or gestured, or something... then I realised why I knew her and obviously looked a bit embarrassed - I assume she realised what had just gone through my head, and that I wasn't about to start waffling at her, cos she just gave me a great big smile and we kept walking...)