Background & Details Kit - SciFi
Backgrounds & Detail Kit Volume 2 Science Fiction Characters
Every character in the world has some kind of background. Even the lowliest of NPC's have some kind of history to them, from being an adopted child to being a covert operative.
Some of the charts from here have been duplicated from Volume 1 and expanded on. A few of the charts from here can be used in any setting, such as a modern setting.
Multi-verse Kit - Life, also by Ennead Games -has a system for determining what your life form looks like and what it can do.