Alpha Centauri (The Curse of Peladon)

Alpha Centauri was the Alpha Centauran delegate to Peladon.

Alpha Centauri first came to Peladon on the Committee of Assessment to review their petition to enter the Galactic Federation. It aided the Doctor in defeating Hepesh and Arcturus. (DW: The Curse of Peladon)

Fifty years later, Alpha Centauri was the Federation Ambassador to Peladon where it helped the Doctor defeat the plans of Eckersley and the renegade Ice Warriors. (DW: The Monster of Peladon)

Characteristics
Although it had a female voice, Alpha was neither male nor female; it was a hermaphrodite hexapod according to the Doctor, and like the rest of its race a natural pacifist. (DW: The Curse of Peladon)