Clara Oswald

Clara Oswald made a speaking cameo appearance in Ben 10 vs The Doctor. She was portrayed by Angela Trimbur.
==Information on the Cameo==
Clara Oswald is a fictional character created by Steven Moffat and portrayed by Jenna Coleman in the long-running British science fiction television series Doctor Who. First appearing in the show's seventh series, Clara serves as a companion of the eleventh and twelfth incarnations of the alien time traveller known as the Doctor (portrayed by Matt Smith and Peter Capaldi). Clara is initially presented to the audience during the first half of the seventh series as three distinct, though similarly named, people living in different eras of time. The first two incarnations, Oswin Oswald and Clara Oswin Oswald, die during the episode in which they appear. The third incarnation becomes the Doctor's companion, travelling with him for the remainder of the series as he tries to uncover the mystery of her multiple lives. The mystery is later resolved in "The Name of the Doctor".
==Appearance in the Battle==
During the Eleventh Doctor's second verse. he says "With both your brains and your chances," and then Clara finishes the line by saying "They're smaller on the inside." to parody how she called the TARDIS "smaller on the outside" in contrast to how everyone else says "bigger on the inside."
==Trivia==
*She is the first cameo to have a speaking role, completing the Eleventh Doctor's line.