Louisa Guy is a British MI5 agent who works for Slough House, a division known for its underperforming intelligence officers. She is portrayed by Rosalind Eleazar in the TV series Slow Horses. Louisa is a skilled but somewhat sidelined agent, sent to Slough House after a botched tailing operation. Throughout the series, she plays a key role in various missions, navigating both professional setbacks and personal challenges.

Trivia/Facts

• Louisa Guy is a British MI5 agent who works for Slough House, a division of MI5. She was born on 19 May 1981. Before Season 1, she was sent to Slough House after a failed operation. Despite the setback, Louisa continues to work in MI5 as part of the “Slow Horses.”
• Louisa appears in multiple seasons of Slow Horses, from Season 1 to Season 4. In these seasons, she is portrayed by actress Rosalind Eleazar. Louisa’s character is shown dealing with the challenges of working in Slough House. Her sharp skills are often put to the test, despite being sidelined from mainstream MI5 work.
• In Season 1, Louisa shares a close relationship with her colleague Min Harper. They form a bond after going to a bar together, where they confide in each other about their pasts. Their relationship turns romantic, but they continue working professionally despite the complications. Louisa proves herself to be resourceful and strong during intense situations.

Slow Horses

• Louisa lives in a flat in Hackney’s Scott House. Her personal life is shown as somewhat isolated, with few close friends due to her work. Despite this, Louisa maintains her focus on her job and the missions she undertakes. Her strong moral compass and loyalty to her colleagues are central to her character.
• One major plot in the series shows Louisa and Min dealing with a dangerous intruder. They manage to overpower him, showing their strength as a team. Despite their drunken state, they handle the situation professionally. The aftermath leads to more intrigue about their roles in Slough House.
• Louisa is heavily involved in missions to rescue hostages, particularly in the case of Hassan Ahmed. She works with her team, including River Cartwright and Jackson Lamb. Her bravery is highlighted when she confronts life-threatening situations. Despite the high stakes, Louisa remains composed and professional.
• Throughout the series, Louisa’s loyalty to her team never wavers. She proves her worth in several missions, despite her initial setback that led her to Slough House. Louisa’s quick thinking and fighting skills often save her and her team from danger. Her resilience and dedication make her a vital member of Slough House.
• Louisa’s complex relationship with Min is a recurring theme. They share a kiss and face romantic tension while handling dangerous situations. Even with their romantic moments, Louisa remains focused on the mission at hand. This adds emotional depth to her character in the series.
• Louisa is involved in critical missions throughout the series, including working with Lamb to stop a dangerous plot involving terrorists. She plays a key role in solving cases and helping rescue hostages. Louisa’s ability to stay calm under pressure makes her one of the most reliable agents in the team. Her contributions are crucial to the success of the Slough House team.

Slow Horses

• In the later seasons, Louisa continues to be an important character as the series progresses. She is shown to be a strong-willed and determined agent. Her journey from being sidelined to proving her worth makes her a fan-favorite character. Louisa’s story highlights themes of redemption, loyalty, and perseverance in the world of MI5.

Louisa Guy’s Relationship with Other Characters

• River Cartwright: River is one of Louisa’s colleagues at Slough House. They both share the frustration of being stuck in this “dead-end” place for failed agents. However, they work well together on missions and seem to respect each other’s abilities, even though both have their own personal issues to deal with.
• Jackson Lamb: Jackson Lamb is the head of Slough House. He’s rough and rude but knows his stuff. Louisa respects his skills, though she, like many others, finds his personality hard to handle. Lamb doesn’t go easy on anyone, including Louisa, but she knows that he has the experience and knowledge to lead the team when things get tough.
• Min Harper: Louisa shares a close relationship with Min Harper, another Slough House agent. Over time, their professional bond turns into a romantic one. They support each other as they deal with the difficulties of their jobs and their personal lives. Louisa’s relationship with Min is important to her, though it later brings her much pain when Min dies during one of their missions.

Slow Horses

• Catherine Standish: Catherine is a former MI5 officer who works at Slough House. She and Louisa have a cordial relationship, even though Catherine is more reserved. Both women understand what it’s like to deal with loss and disappointment, and this shared experience gives them a quiet connection.
• Roddy Ho: Roddy Ho is a tech expert at Slough House. He’s arrogant and not well-liked by many, including Louisa. She tolerates him because he’s useful, but they don’t have a strong personal connection. Roddy often underestimates others, including Louisa, but she proves her worth time and again in the field.

Slow Horses