- Gary Oldman (Jackson Lamb)
- Jack Lowden (River Cartwright)
- Kristin Scott Thomas (Diana Taverner)
- Hugo Weaving (Frank Harkness)
- Saskia Reeves (Catherine Standish)
- Christopher Chung (Roddy Ho)
- Aimee-Ffion Edwards (Shirley Dander)
Slow Horses — S4E6
Episode: Hello Goodbye
Air Date: 2024-10-09
Runtime: 53 min
Overview
Impossible decisions are faced and sacrifices are made.