Ebb

From V3Pedia

Ebb is a little yellow floating alien who serves an important function on Station V3, but nobody's quite sure what it is. He was transfered to K7 for a period before being hired by the trees of the Celestial Orb to return them to Triangulum galaxy and station V3 to the Milky Way when something happed involving the Monolith that returned him to V3 where it is again a crew member.