Alpha Centauri

Alpha Centauri is a Hermaphrodite Hexapod who first appears in the third episode of Season 12.

Personality
Despite its feminine sounding voice, Alpha Centauri has no gender and should properly be referred to as an "it". However, the Doctors generally use the masculine term when talking about it.

Alpha Centauri is a natural pacifist who serves as a medic, but there are times where it displays a degree of courage, like when it confronts the Cyber Controller in the Season 12 finale. However, most of the time, it gets very panicky and hysterical, like when surrounded by an army of Cybermen in the fifth episode of Season 12. It also seems to be terrified of Sharaz Jek's pet pig, Babe. Despite this, it still told Sharaz Jek that it was sorry that Babe was killed by a Cyber-Leader.

It has a low opinion of Earth, considering it a "remote and unattractive planet at best".