Alfie Owens
Alfie is the son of Craig Owens and Sophie. He likes to call himself "Stormageddon, Dark Lord of All", and referred to Craig as "Not Mum". His crying gave Craig the power to overcome the conversion of his body to that of a Cyberman.
"You, Alfie Owens, you are so young, aren’t you? And, you know, right now, everything’s ahead of you. You could be anything. Yes, I know. You could walk among the stars. They don’t actually look like that, you know, they are rather more impressive.
You know, when I was little like you, I dreamt of the stars. I think it’s fair to say, in the language of your age, that I lived my dream. I owned the stage, gave it a 110%. I hope you have as much fun as I did, Alfie. " -The Doctor to Alfie