Theresa Nisha Nayar played the female programmer in the Doctor Who stories Bad Wolf and The Parting of the Ways and voiced Zanzibar in the Big Finish Doctor Who audio story Harvest of the Sycorax. She had earlier played an uncredited Red Kang in Paradise Towers. (DWM 326) She was the first female actor to appear in both main versions of Doctor Who.
Nayar is perhaps better known for her role as the well-meaning but annoying social worker Elaine "the Pain" Boyak in the children's comedy drama series The Story of Tracy Beaker (2002-06), a current programme at the time of her appearance on BBC Wales Doctor Who.