Series 10 Rumours & Speculation

[Forever Secret]

Ruth ....a Chinese agent? Oh please NO!
I don't think I could stand it if she were! It would destroy her character (Not like thats ever happened before *cough Lucas cough*)

And I don't think Ruth could be a traitor, she is far too compassionate and loyal... then again as you said BravoNine, the writters could think different, I wouldn't be surprised either they did make Ruth out to be a Chinese agent, but I don't think there would be many Happy bunnies if she were

Seems like quite a few new characters come in has had a time where they've been a traitor, or not all they seem to be at some point, Beth (in 9.2), Lucas (Double agent for the Russians in S7), Adam (Threatening to give Ben the information on the train bomb in S6) and even Ruth back in S2 was sent as a mole by GCHQ, other than Lucas all the good characters did turn out to be good in the end