The Doctor's companion explores Earth with Harry. She is found by Roth, captured by the Sontaran robot, and subjected to terrifying hallucinations by Field Major Styre. After the Doctor removes the device, she is freed by Harry during the climax, helps rescue the remaining astronauts, and attempts to return to Nerva.
Core companions who rely on each other for survival and mission success.
Companions who maintain mutual support throughout the ordeal.
A traumatized survivor who temporarily aids Sarah.
Explore the full interactive character relationship map of Doctor Who: The Sontaran Experiment