HEX: The last time I saw sick people being mown down it was the Daleks doing the shooting. Now it’s us.

HEX: I'm not scared. I'm not.

DOCTOR: That’s right, Cassie. Tommy. Your boy. The boy that Nimrod took away from you. Look at the man he’s become. You would have seen that if Nimrod hadn’t murdered you. Seen him take his first steps, cleaned up his knees when he fell. Felt the pain of his first heartbreak, and the joy of his first day as a nurse. You’d have been so proud of him, Cassie. I know, because I’m proud of him every single day.