The pair were at the back end of a day of press, but seemed in fine fettle.

you could find the questions others asked at said grouped interview at their assorted outlets around the internet.

Five minutes would be pushing it.

I think youve got a sketch.

Youve got to take it not so much seriously, but sincerely.

We try and tell a good superhero story, and talk about things I think are fun about superheroes.

Which is mainly that I think its fun you have to have a secret identity.

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A follow up to that.

Im a parent of three.

That it was something people, even if they didnt have much, could easily copy.

That you give them something they can copy, and play?

SM:Very much.

I always say you have to be able to draw the monster.

We talk a lot about whats the playground game?

That doesnt mean we take it simply.Doctor Whostories can be complicated, and can be emotional.

At its heart, it is a childrens programme.

One that adults absolutely love.

But thats who it belongs to.

There isnt aHolby Citylunchbox, or if there is, theyve probably not sold very many!

Its their show, and I feel very strongly about that.

But that doesnt mean its dumb.

Childrens television has to be challenging.

You have to stay ahead of these things.

Kids, lets be clear, are smarter than us.

PC:Its also very clear when youre acting that thats the challenge of it.

You have to be able to entertain six year olds and 80-year olds, and everything in between.

Thats quite tricky, because sometimes theres a conflict.

But then you realise, no, this programme is for children, as well as for adults.

This moment is one they will reach more quickly, and its more accessible to them.

So do it: be funny, be silly, be sad, juggle all of those things.

Thats the challenge of it.

TheDoctor WhoChristmas special screens guess!

Our spoiler-free review is here.