Varada Sethu and Tuppence Middleton join Slow Horses Season 7

Variety reported Varada Sethu and Tuppence Middleton have joined Apple TV's Slow Horses for Season 7. Sethu starred in Andor; Middleton played Sara Mankiewicz in Mank, Variety reported. Gary Oldman stars in the MI5 drama based on Mick Herron's Slough House books, Variety reported.