What sort of questions should I ask someone being interviewed for a fundraising job at a charity?

Make sure to get references that you can contact. Also ask if they are coming with their own call lists OR if they are going to rely on your database. If they do come with their own lists, ask where they got those names from... and whether or not when they are through with you if they will be taking your database with them. Find out in advance how much 'call time' they are going to want to schedule with you OR if they are going to be doing the calling directly OR just acting as a coach while you call. This should get you started.