Doc Brown aka Ben Bailey Smith. Rich interviews a member of his audience and it’s going to well he almost decides to bump his guest, but in the end relents and brings on the battle rapper turned stand up turned actor and author, Ben Bailey Smith. It’s a frank, fascinating and unusually sensitive chat taking in growing up in North London as a geeky mixed race kid, why it’s not fair to use talent to get ahead of the other talentless stand ups, working with Ricky Gervais, how producer Ben helped keep Doc's career on track (and why hasn’t he done the same for Richard) and trying to work out why Doc Brown’s family are such a hotbed of artistic skill. Find out what you have to do to get on to CBeebies and what Doc would jump into a pool of and if he’s capable of spotting the colour purple. Once again the emergency questions copied off the internet prove more effective than Richard’s rubbish ones.