If anyone said to me 'invent a new monster so we can sell more toys', I'd kick them out of my office.
Steven MoffatAmy Pond: 'I thought... well, I started to think you were just a madman with a box.' The Doctor: 'Amy Pond, there's something you better understand about me, 'cause it's important and one day your life may depend on it. [He Smiles] I am definitely a madman with a box.
Steven Moffat