Anne Droid

The Anne Droid was a robot who hosted a deadly version of the game show The Weakest Link in 200,100. It was equipped with an energy beam in its mouth that was commonly believed to be a weapon that disintegrated the losers. In reality it was a transmat beam used to transfer losers to the Dalek Fleet. When the Daleks invaded the Game Station, Jack Harkness reprogrammed the Anne Droid to fight the Daleks. Jack liked the fact that she could provide a nice defence on Floor 495, though the droid did not hold back the Dalek fleet for long. She transmatted three Daleks back to the mothership, but before she could transmat a fourth, the Dalek blew her head off, taking advantage of the fact that she needed to say, "You are the Weakest Link. Goodbye", before firing.

Biography from the TARDIS Data Core article, licensed under CC-BY-SA