You'd be forgiven if you didn't quite recognize Jackson Lamb in recently released first-look images for Slow Horses season 4. The apathetic leader of Slough House looks like he has ditched his trademark grubby raincoat that has been one of his primary accessories in the first three seasons of the Apple TV Plus spy series and that he has perhaps (gasp) washed and/or combed his usually greasy hair. Has Lamb turned over a new leaf and is going to be acting and dressing more professional?
