I've found this link to The Guardian really useful http://www.guardian.co.uk/hutton/keyplayers/ As well as summarising some of the evidence these key players gave at the Hutton Inquiry there are "mug shots" accompanying some of them - I wonder if anyone has had preconceptions of what those they haven't seen before look like.
Personally I've never imagined anything about the appearance of Hutton witnesses.
For anyone wondering about the sort of person Dr Shepherd is I'm glad to say that Felix has been busy! My last post was titled "Dr Kelly's injury to his right elbow". The comment from Felix timed at 19.06 has a link to a short video featuring Dr Shepherd.