This is the website that categorizes all the top British actors at this moment. They aren't all exactly up-and-coming, but for one reason or another (Cough cough...Sherlock and Doctor Who...) they are the media's (and tumblr's) recent obsessions. This website strives to collect all the names in one, convenient location so as to make obsessing over them easier. Enjoy your stay!
I would just like to say that I got just about every scrap of information here from Wikipedia. I just made it look a whole lot prettier. Plus, Wikipedia doesn't have all the awesome pictures.