Yes, some of us are a bit behind on this one. Download the crib sheet below for the main characters, including pics. (I usually prepare one of the these sheets for each series of The Apprentice to keep up with all the names.)
You're all set now then, aren't you? BBC4 at 9pm this evening. Enjoy!
(Information on crib sheet copied from the BBC's website, with some obvious typos corrected.)