The Slow Horses season 4 trailer has finally arrived and it gives viewers a fascinating insight into Emma Flyte, a major new character in the Slow Horses world.
Emma, played by Ted Lasso's Ruth Bradley, is a huge character in the books by Mick Herron which the Apple TV Plus hit is based on. And she comes in at the start of the new series, which again stars Gary Oldman as slob spy boss Jackson Lamb.
