The Slow Horses season 6 cast brings back the full Slough House team. Gary Oldman returns as Jackson Lamb. Jack Lowden is back as River Cartwright. Kristin Scott Thomas is Diana Taverner. The whole crew is here. But there are new faces too. A pair of assassins. A media mogul and a character thought dead.
Kyle Soller and MyAnna Buring play the killers. Harry Lloyd plays Damien Cantor. Olivia Cooke returns as Sid Baker. The Slow Horses season 6 cast is a mix of old and new. Strong actors. Strong season. All on Apple TV now.
The Main Slow Horses Season 6 Cast
The core ensemble is back. These are the actors and the characters they play .
- Gary Oldman as Jackson Lamb. The rude, messy, brilliant leader of Slough House.
- Jack Lowden as River Cartwright. The agent who never stops trying.
- Kristin Scott Thomas as Diana Taverner. The MI5 boss who uses the Slow Horses as pawns.
- Saskia Reeves as Catherine Standish. Lamb's loyal and steady assistant.
- Christopher Chung as Roddy Ho. The tech guy nobody likes.
- Aimee-Ffion Edwards as Shirley Dander. The tough one.
- Rosalind Eleazar as Louisa Guy. The heart of the group.
- Tom Brooke as JK Coe. The quiet, intense agent.
- Jonathan Pryce as David Cartwright. River's grandfather, a retired spymaster.
- Hugo Weaving as Frank Harkness. A dangerous figure from the past.
- Joanna Scanlan as Moira Tregorian. A Slough House regular who becomes a target.
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Slow Horses Season 6 Cast Guest Stars: The New Faces
The Slow Horses season 6 cast guest stars shake up the season. These new characters are causing all the trouble.
- Kyle Soller as Jim. One of the assassins hunting former Slough House agents. Soller is known for playing Syril Karn in Andor . His character is cold and methodical.
- MyAnna Buring as Jane. The other assassin. She works with Jim. Buring is known for The Witcher and Downton Abbey .
- Harry Lloyd as Damien Cantor. A media mogul and far-right TV channel owner. He is blackmailing Diana Taverner. He also hired Frank Harkness to steal a Slough House file. Damien is a major villain this season .
- Lucian Msamati as Oliver Nash. A new character in the season.
- Lenny Rush as Reece Nesmith. A new addition to the cast. He is a BAFTA TV Award winner .
Slow Horses Season 6 Cast Killers: Jim and Jane
- The Slow Horses season 6 cast killers are the biggest new addition. Their names are Jim and Jane. They are played by Kyle Soller and MyAnna Buring .
- They are targeting former Slough House agents. They killed Struan Loy in the first episode. They burned down his container with him inside . They also killed Moira Tregorian. She was drowned in her own home .
- The killers are methodical. They have a list. They are crossing names off one by one. The question is who gave them the list and why .
Slow Horses Season 6 Cast Damien: The Man Pulling the Strings
- Harry Lloyd plays Damien Cantor. He is the new big bad. The Slow Horses season 6 cast Damien character is a young media mogul. His politics are far right. His TV channel is described as "one lawyer's letter away from being called GB News" .
- He is linked to everything. He secretly funded Peter Judd's investment in MI5. He is using that to blackmail Diana Taverner . He hired Frank Harkness to steal a file . He also contracted Harkness to do a job. That job has a loose end. A witness. A minor. Damien approves Frank's plan to deal with it .
He is the one connecting all the dots. The assassins. The file. The attack on Slough House.
Slow Horses Season 6 Cast IMDb: What to Check
If you want to see the full Slow Horses season 6 cast IMDb page, you can look up the show on the site. The full cast list has 66 entries . It includes every minor character and crew member. The main cast is listed at the top.
The Big Return: Olivia Cooke as Sid Baker
Olivia Cooke is back as Sidonie "Sid" Baker. She appeared in season 1. She was shot in the head. Everyone thought she was dead. Now she is back .
The season 6 trailer ends with River seeing Sid. He is shocked. Fans are shocked too. Roddy Ho had uncovered evidence she might be alive. Now that is confirmed .
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Why the Cast Matters?
The Slow Horses season 6 cast works because everyone fits. Gary Oldman is Jackson Lamb. There is no one else. Jack Lowden is River. The ensemble has been together for years. They know these characters. They know how they move and talk.
The new additions bring fresh energy. Kyle Soller and MyAnna Buring are genuinely scary as the killers. Harry Lloyd is slimy and dangerous as Damien. Olivia Cooke's return adds emotional weight.
Final Word
The Slow Horses season 6 cast is a mix of old and new. The Slough House team is back. Gary Oldman, Jack Lowden, Kristin Scott Thomas, and the rest. The new guest stars bring the threat. Kyle Soller and MyAnna Buring as the killers. Harry Lloyd as Damien Cantor. Olivia Cooke returns as Sid Baker. It is a strong cast. It is a strong season. And it is all on Apple TV now.
FAQs
1. Who is in the Slow Horses season 6 cast?
Gary Oldman as Jackson Lamb. Jack Lowden as River Cartwright. Kristin Scott Thomas as Diana Taverner. Saskia Reeves as Catherine Standish. Christopher Chung as Roddy Ho. Aimee-Ffion Edwards as Shirley Dander. Rosalind Eleazar as Louisa Guy. Tom Brooke as JK Coe. Jonathan Pryce as David Cartwright. Hugo Weaving as Frank Harkness. Joanna Scanlan as Moira Tregorian.
2. Who are the new guest stars in season 6?
Kyle Soller as Jim. MyAnna Buring as Jane. Both are assassins. Harry Lloyd as Damien Cantor. A media mogul. Lucian Msamati as Oliver Nash. Lenny Rush as Reece Nesmith. BAFTA TV Award winner.
3. Who are the killers in Slow Horses season 6?
Jim and Jane. Played by Kyle Soller and MyAnna Buring. They are targeting former Slough House agents. They killed Struan Loy. Burned his container with him inside. They killed Moira Tregorian. Drowned her in her own home. They have a list. They are crossing names off.
4. Who is Damien in Slow Horses season 6?
Harry Lloyd plays Damien Cantor. A young media mogul. Far-right politics. His TV channel is one lawyer's letter away from being called GB News. He is blackmailing Diana Taverner. Hired Frank Harkness to steal a file. Contracted Harkness for a job. The job has a loose end. A witness. A minor. Damien approves the plan to deal with it.
5. Is Olivia Cooke back in Slow Horses season 6?
Yes. She returns as Sidonie "Sid" Baker. She appeared in season 1. Was shot in the head. Everyone thought she was dead. Now she is back. The trailer ends with River seeing her. He is shocked. Roddy Ho had found evidence she might be alive. Now confirmed.
6. Where can I see the full Slow Horses season 6 cast IMDb?
Look up the show on IMDb. The full cast list has 66 entries. Includes every minor character and crew member. Main cast is listed at the top.
7. Who plays the assassins in Slow Horses season 6?
Kyle Soller plays Jim. MyAnna Buring plays Jane. Soller is known for Andor. Buring is known for The Witcher and Downton Abbey. Their characters are cold and methodical. They work as a team.
8. Is Gary Oldman in Slow Horses season 6?
Yes. He returns as Jackson Lamb. The rude, messy, brilliant leader of Slough House. He is the heart of the show. The season does not work without him.
