Mushroom trolls are the best known philosophers. They are floating around on the flying rocks and do nothing but think.
Mechanical family. Father with his daughter and adopted son Boris. They fly from planet to planet in search of their mother. They have a small spacecraft that constantly breaks down and they have to fix it. They also have a holographic map of several galactic sectors.
Crystalolokatl - troll with phosphorus crystal formations on his back that glow in the darkness.