Female guard (The Impossible Planet)

A female guard was part of the crew of the Walker Expedition on Sanctuary Base 6 in the 43rd century.

She was stationed with Mr Jefferson at the mine shaft when the Ood were possessed. (TV: The Impossible Planet)

She initially fought off the Ood but as Jefferson opened a door, she was attacked and killed by a second group of possessed Ood. (TV: The Satan Pit)

Trivia
This character only makes two sounds throughout the 2 episodes. One is a single line of dialogue, "Yes sir," when Jefferson orders her to arm herself when the Ood act up. The other is a scream when killed by the Ood.