Limit this to the companions to ease you in gently then include any character at all if you're feeling a bit more confident. Though something tells us that confidence won't last for long...
Dan Butler is the Doctor Who Editor at WhatCulture.com. When he isn't writing his own articles or editing other people's, he can be found trawling the internet for gifs of Steven Moffat laughing. Contact him via dan.butler@whatculture.co.uk.