In conversation with star Jason Isaacs, the author of the Case Histories novels, Kate Atkinson, has revealed his character is really a woman.

Jason plays soldier-turned-detective Jackson Brodie in the Edinburgh-set BBC1 series. But beneath the tough exterior lies an interesting character. Jason reveals in fact that Jackson ‘is really a woman’.

Kate said: “If you’re writing in a novel in a cross-gender way, writing a male character, for me it took me a long time to do that… I felt I couldn’t inhabit their psyches. It was a big decision on my part when I wrote Case Histories to make Jackson a man and the only way I could do it was to make all his peripheral life male… But really his brain is mine.”

Case Histories screens on BBC1 on Sunday nights:

Watch Kate Atkinson and Jason Isaacs in conversation: