Children of Time
A variety of aliens and creatures exist throughout the universe. Some hostile, some friendly, and many indifferent. Most of them go through their day-to-day business without much influence over the ebb and flow of the universe. However, every so often there will be a race of beings who have significant clout when it comes to the well being of time and space itself. Some of these beings are dealt with by the Children of Time, a group of the Doctor’s companions who will stop at nothing to keep the universe safe for all benign creatures. Other creatures, however, are on the side of good, resisting those who would cause them ill.