Reb Shavron was a Martian human who was critical to the early foundation of the Anti-Dalek Force. She was in the first class of candidates of the Anti-Dalek Force, and became one of its two initial seconds-in-command, alongside android Mark Seven.

In the first ADF assault on Skaro, she was briefly captured and tortured by the Daleks after she successfully helped to disable their "sky-spy". However, she quickly made it out of captivity and back to the safety of an ADF evacuation ship. (PROSE: Terror Task Force)