Billis

Billis was one of the harvest rangers on a snowy planet in 5345.

Billis was present when Madge Arwell was caught in the forest. Billis identified her as a time traveller. When Droxil tried to interrogate her, Madge pretended to cry. Billis thought it was questionable to shoot or interrogate her. Droxil agreed to put down his weapon. All three were caught off guard when Madge aimed her revolver at them. She took them prisoner, handcuffing Droxil and Ven-Garr to poles inside their Androzani harvester but allowing Billis to help her with the scanner. Madge tried to get Billis to steer the Harvester to where her children were, but Billis didn't know how to drive it. The three rangers were teleported to safety, leaving Madge on-board the Harvester. (TV: The Doctor, the Widow and the Wardrobe)