According to Deadline, season 3 of ‘Slow Horses’ will be released on AppleTV+ on December 1. It’s not known yet which episodes feature Charlie.
Gary Oldman and the Slow Horses gang return with the first two episodes of Season 3 on December 1, with new episodes to be released individually each Friday through December 29 via Apple.
The series is a darkly humorous espionage drama that follows a dysfunctional team of British intelligence agents who serve in a dumping ground department of MI5 known un-affectionately as Slough House.
In Season 3, adapted from Real Tigers, the third novel in the Mick Herron series, a romantic liaison in Istanbul threatens to expose a buried MI5 secret in London. When Jackson Lamb (Oldman) and his team of misfits are dragged into the fight, they find themselves caught in a conspiracy that threatens the future not just of Slough House but of MI5 itself.