Antimony (Death Comes to Time)

Antimony was an android companion of the Seventh Doctor.

He assisted the Doctor rescue the Canisians and eventually assisted him in an investigation into the deaths of Valentine and Antenor.

Antimony was apparently constructed by the Seventh Doctor as a permanent companion. He did not know he was an android. Ace knew of him.

He was eventually shot to death by Tannis after finding out what he really was. (NOTVALID: Death Comes to Time)

Behind the scenes

 * Antimony's appearance was modelled on that of actor Kevin Eldon by illustrator Lee Sullivan.
 * He was named after the element on the Periodic Table.