Currently available on 2 streaming services.

Streaming, rent, or buy Slow Horses – Season 4:

Currently you are able to watch "Slow Horses - Season 4" streaming on Apple TV Plus, Apple TV Plus Amazon Channel.

Cast

Gary Oldman
Jackson Lamb
Jack Lowden
River Cartwright
Kristin Scott Thomas
Diana Taverner
Hugo Weaving
Frank Harkness
Jonathan Pryce
David Cartwright