Jesus, 1138, if you really want it, I could potentially make the solitary planet in the Centauri system somewhat habitable and possessing a colony. But inventing random planets in a system that's pretty hostile to life as we know it, and then making each and every one of them home to a cookie cutter stereotype where every single individual living on them is exactly the same in disposition and dogma is a no-no.
EDIT: Nevermind, it turns out that Alpha Centauri Bb would just be an earth-sized ball of molten magma orbiting the largest and hottest star of a trinary system at an extremely close range of 0.04 astronomical units, nowhere near the habitable zone of any of them.