Who are the bad guys in stormbreaker?

In "Stormbreaker," the first book of Anthony Horowitz's Alex Rider series, the main antagonist is the villainous businessman Herod Sayle, who plans to use a state-of-the-art computer system to manipulate and control British schoolchildren. Sayle's motivations are rooted in revenge and greed, as he seeks to undermine the British government. Additionally, his henchmen, including various operatives associated with his nefarious plans, also play a significant role in creating obstacles for the protagonist, Alex Rider.