Alpha Centauran

Biology
The Alpha Centaurans were hexapods with tentacle-like limbs, each tipped with claws. Their heads were featureless except for a large eye. (DW: The Monster of Peladon) They were normally green in colour, though they would change in hue to match their mood. (MA: The Dark Path) Despite their female-like voices, Alpha Centaurans were hermaphrodites and should properly be refered to as "it". (DW: The Monster of Peladon)

Culture
The Alpha Centaurans were known for being hypochondriacs. Alpha Centaurans never drank alcohol and could not see the appeal of it. (MA: The Dark Path)

History
Though Alpha Centaurans could be found in the Earth Empire, (NA: Original Sin, BNA: Mean Streets) they became full members of the Galactic Federation. (DW: The Monster of Peladon)

On the ship Piri Reis, the cultural advisor was a Alpha Centauran named Epilira. It was later removed from existence by the Darkheart. (MA: The Dark Path)

During the entrance of Peladon into the Galactic Federation, Alpha Centauri acted as a diplomat. (DW: The Monster of Peladon) It later stayed on during the later war with the invaders from Galaxy 5. (DW: The Curse of Peladon)