The Panopticon/Last name, first name

I was in the middle of overhauling an article when I suddenly realised that when we start referring to a character with one name we sometimes use the last name and sometimes use the first name. We seem to use the first name pretty much always for women, and we vary widely on the men. Meaning that when we refer to Martha Jones we call her Martha, but when we refer to Jackson Lake we call him Lake. We sometimes end up using both last name and first name in sentences that have multiple characters being referred to in the same breath. For example: "Using the devices to attack the Cybermen, Lake, Rosita, and the Doctor..."

Do we have a preference for one format over the other on this wiki, or do we just care that articles use the same format all the way through? Either way, this seems to be a problem on tonnes of pages and fixing it is going to require some massive copyediting.