SV7

SV7 was the Super-Voc which supervised the other robots aboard a Sandminer. When Taren Capel took control of SV7, he led the robots in killing the crew. Leela released helium into the air so that SV7 did not recognise Capel's voice, and so he killed him. The Fourth Doctor then deactivated it. (TV: The Robots of Death)

Behind the scenes

 * SV7 was released as an action figure in Wave 1 of Classic Series Character Options action figures.