Shola

From Tardis Wiki, the free Doctor Who reference

Shola was a soldier in the temporal war on Aoris. She captured Romana II and took her to Embery. (AUDIO: The Paradox Planet)

She was appalled at the state of the future. After going back to Era 14, she got the deactivation codes for a set of bombs and deactivated them in Era 24. (AUDIO: Legacy of Death)