Clara Oswin Oswald

Clara Oswald was a companion to the Eleventh and Twelfth Doctors. According to the former, she was simply "not possible". Though assured by the eminent empathic psychic Emma Grayling and the TARDIS scanner that Clara was just an "ordinary girl", the Doctor couldn't believe that to be true and thought her to be "the only mystery worth solving".

She is played by Jenna-Louise Coleman.