Adapted from the fifth
Alex Rider novel, season three sets the teenage spy on the tail of his greatest enemy: the elusive criminal network known as Scorpia. Under new leadership, the criminal cabal plan to extort the British Government using their catastrophic new super-weapon: ‘Invisible Sword.’ Free of The Department and aided by his closest friends, Tom and Kyra, Alex embarks on a personal mission to destroy Scorpia once and for all. Little does he know, his ties to both organizations run deeper than he ever thought possible.
The third season of
Alex Rider features the return of series stars Otto Farrant (
Edge of the World,
Mrs. Wilson) as Alex Rider, Vicky McClure (
Line of Duty,
Trigger Point) as Mrs. Jones, Stephen Dillane (
The Outrun,
Red Election) as Alan Blunt, Brenock O’Connor (
The Split,
Game of Thrones) as Tom Harris, Ronkẹ Adékọluẹ́jọ́ (
Rain Dogs,
Christopher Robin) as Jack Starbright, and Marli Siu (
Everything I Know About Love,
Our Ladies) as Kyra Vashenko-Chao. As previously announced, new actors joining the cast this season include Sofia Helin (
Lust,
The Bridge) as Julia Rothman, Shelley Conn (
Gen V,
Bridgerton) as Laura Kellner, Kevin McNally (
The Crown,
Pirates of the Caribbean) as Max Grendel, and Jason Wong (
Dungeons & Dragons: Honour Among Thieves,
The Covenant) as Nile.