Endeavour star Shaun Evans is back on ITV, this time starring in four-part spy thriller Betrayal, in which he plays a mid-career MI5 officer. When speaking with RadioTimes.com exclusively about the series, Evans noted that when adding to a genre as well established as the spy thriller, you have to bring "a fresh, new voice" to it. Shaun Evans as John Hughes and Zahra Ahmadi as Mehreen Askari-Evans in Betrayal. And that is it really - we have a tendency to glamorise and mystify them, but actually…""I think there needs to be an everyday quality to John," Evans added. Add Betrayal to your watchlist on the Radio Times: What to Watch app – download now for daily TV recommendations, features and more.