Cass is a fictional character portrayed by Emma Campbell-Jones in the TV series Doctor Who.
They appear in 1 episodes out of a total of 166 aired
Cass is also portrayed by Sophie Stone.
Episodes1
The Wedding of River Song
episode S6.E13 october 2011April 22nd, 2011; 5:02pm. Having finally accepted his fate the Doctor travels to Lake Silencio for his final day. But one woman refuses to let time take its course.