Voices: I was the wrong colour to perform at the London Olympics – acting is still run by the white middle classes

‘Colour-blind casting’ has made it hard for white male actors to find work, according to a former RSC boss. But such an innovation might have saved my stage and screen career, writes Nicholas Beveney. To earn a living, I had to leave the country – a decision I took when I lost my starring role in the 2012 opening ceremony