In the Doctor Who episode "Daleks in Manhattan", Miranda played a showgirl who sang and dance a musical number while her real father played the piano as part of the orchestral background.
Miranda: I thought I knew how to look after myself after growing up with two brothers, but now they're both much bigger than me I'm not so sure!. I do adopt a sort of London attitude that I think has a certain 'back off' quality about it but I'm an absolute drip on the phone!
Miranda: (on her family keeping her grounded) They've seen me advertising everything from mobile phones to pizzas, wearing dodgy make-up and in some really bad plays, so I get plenty of teasing. People think that having two younger sisters that they'd kind of look up to me, but there's none of that at all!
Miranda: I did have quite a rude awakening when I started going out for auditions and found that everyone else there wanted that part every bit as much as I did. It was a bit of an ego crush, but I think it probably did me a lot of good when I got turned down for parts. Until then I had had it easy. I breezed into drama school, breezed through three years of training. Then got an agent straight away. So I couldn't work out why anyone couldn't possibly want me. You just don't think anyone is as ambitious as you are.