One of the things the BBC does better than anyone is period drama.

There are many, many communities, many ethnic minorities, many civilizations that have been brutalised by others and you have to move on. You cannot perpetually stay in that place of blame, otherwise it's just a downward spiral.

I think it's vital to have something outside your acting to keep you rooted in the real world, and help you fill the vacuum. If you have nothing else, it can be unhealthy. For me being a Christian has been invaluable: it simply means acting isn't the centre of my life.

Find the audience, be excellent, and you will be fine.

I truly believe slavery is why, as a by-product, we still have a disproportionate amount of black men incarcerated in America. It is an extension of that legacy, and that's not going to start to diminish until black people have a new sense of themselves that isn't tied to slavery and feeling inferior. I think the church can be instrumental in that, in terms of repentance, reconciliation and just being more embracing of each other - not just on Sunday, but in life generally.

I would make the tea on a Daniel Day-Lewis set just to observe how he crafts roles like he did in 'My Left Foot.' That was the equivalent of seeing Haley's Comet for me. I just couldn't understand how that was possible.

I know I had my equivalents in Adrian Lester and Lenny James when I was at drama school. I remember David Harewood doing 'Othello' at the National, and Adrian Lester having done Cheek by Jowl's famous 'As You Like It and Company' at the Donmar. Not necessarily performances I saw, but just the fact they happened was massively encouraging.