|Place of origin:||Earth|
|Appearances:||TV: The Sontaran Stratagem / The Poison Sky|
|Main actor:||Bridget Hodgson|
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. After the defeat of the Sontarans, she kissed Mace. (TV: The Sontaran Stratagem / The Poison Sky)
- Her insignia suggested that she was a member of the Royal Engineers.