'Before They Were Famous'
I know this adaptation is only a few years old, but it is interesting to see what some of the actors who were lesser known at the time have gone on to have done. A lot of this great cast have gone on to do quite well, and the signs seem to be they could do even better.
Sophia Myles in particular seems to be doing well now, as does James D'Arcy. Lee Ingleby seems to be doing a fair bit of high profile stuff nowadays (Life On Mars, Wind In The Willows etc), and most surprisingly of all Debbie Chazen is doing Tittybangbang! When I saw that show I knew I recognised her from somewhere.