Alex Rider

Otto Farrant portrays the titular character Alex Rider. Alex is a teenage spy who is recruited by MI6 after the death of his uncle. He is highly skilled in various forms of combat and possesses an exceptional ability to adapt to dangerous situations.

Brenock O'Connor plays the role of Tom Harris, Alex's best friend. Tom is a loyal and supportive companion to Alex, often getting involved in his dangerous adventures. He provides a sense of grounding for Alex in his double life as a spy.

Ronkẹ Adékoluẹjo portrays Jack Starbright, Alex's guardian. Jack is a strong and independent woman who works as a housekeeper for Alex's uncle. After his passing, she continues to protect and support Alex, becoming a trusted ally in his missions.

Vicky McClure takes on the role of Mrs. Jones, the head of operations at MI6. Mrs. Jones is a seasoned agent with a no-nonsense attitude. She plays a pivotal role in recruiting Alex and providing him with the necessary resources and guidance.

Stephen Dillane plays the character of Alan Blunt, the head of MI6. Blunt is a strategic and calculating individual who oversees the missions carried out by Alex and other operatives. He is known for his stern demeanor and commitment to national security.

Ace Bhatti portrays Crawley, a training officer at MI6. Crawley is responsible for preparing Alex for his dangerous missions and ensuring that he is equipped with the necessary skills and knowledge. He serves as a mentor figure to Alex.

Nyasha Hatendi plays the role of Smithers, a gadget specialist at MI6. Smithers is responsible for creating and providing Alex with the advanced devices and tools he needs to complete his missions. He is a resourceful and tech-savvy member of the team.

George Sear portrays Parker Roscoe, a fellow student at Alex's new school. Parker is shown to be a popular and charismatic student who becomes friends with Alex. However, there is more to Parker than meets the eye, and his true intentions are revealed throughout the series.