Marion Price

Captain Marion Price was a UNIT officer in the early 21st century. She served as second in command to Colonel Mace and was a senior technical officer. She was charged with co-ordinating between different countries such as the US, UK, France, Pakistan, India, China and North Korea for a nuclear attack against the Sontaran ship. She also co-ordinated the attack on the ATMOS factory when Colonel Mace led the attack.

Her insignia suggested that she was a member of the Royal Engineers. (DW: The Sontaran Stratagem/ The Poison Sky)