Samuel West's Peter Judd and James Callis' Claude Whelan are also expected to return in season 5, as seen in the teaser trailer that dropped at the end of the Slow Horses season 4 finale.

Slow Horses season 5 has confirmed a release window in a brand-new teaser clip. The next outing for the hit Apple TV+ spy series comes after the fourth premiered late last year, with the streamer now ...