HOTSEAT It’s so moving, so real and unlike anything I have read before or seen before...

David Tennant stars as the dad of a child with severe learning disabilties in a groundbreaking new series. Here he talks about what attracted him to the role difficult brief she has got because she has no words. But she has got such a pragmatism about her.

Maybe it’s just the gift of being younger, but you don’t sense the kind of self-consciousness in her that others might feel in taking on a role like that. She can slip in and out of being Rosie without any kind of comment. That’s more difficult to do than it might seem, and yet it is what we need in these circumstances. She is a remarkable little girl. YES. It is just wonderful that they have come through it – what a credit to them! I do not speak for Shaun, but he talks very openly about when it could have gone either way. But life worked out for them. IF it is challenging now and again to people watching it, I think that is OK.

It is not like we are talking about something that does not happen and we are not making judgments about it.

It is hard to portray, hard to tell and also hard to make generalisations about, so we are not trying to do that. We are just trying to be open and honest. In the end, it is really good that as a society we just remember all the people who are underrepresented. I am delighted this is happening. David Tennant, left, as Simon, and below, with Edan Hayhurst as Ben, Miley Locke as Rosie and Jessica Hynes as Emily in There She Goes