Anya Kingdom

Anya Kingdom was a Time Agent who posed as a police officer called "Ann Kelso" from 1970s Earth, and a companion of the Fourth Doctor.

Biography
Ann first encountered the Fourth Doctor after Jimmy Lynch's gang attacked Tony's café. She then hid Tony in her flat and helped the Doctor to defeat the Sinestrans. She asked to join him on his travels and he accepted. (AUDIO: The Sinestran Kill)

Behind the scenes
The character of Ann Kelso was written specifically for Jane Slavin due to her extensive work on the Fourth Doctor Adventures and her close friendship with Tom Baker.