Zack

Zack's History

X5-599, or "Zack", is one of the twelve X5s, who successfully escaped from Manticore.

Zack was arrested shortly after the escape from Manticore, though he escaped again 4 hours later, and was not seen again. For over 10 years, he managed to find and hide the other escapees, keeping track of them and refusing to tell each one about the others in case they were captured by enemies. He is highly mistrustful of regular humans and very protective of his siblings, especially Max Guevara.

Zack first appears in Seattle under the alias of Sam, where he manages to obtain a job working at Jam Pony from Normal. After Max manages to track him down and learns that Sam is really Zack, they fight their way out of Zack's apartment as Lydecker had found them. Zack seeks Max out after Brin is captured by Lydecker's men. Together the pair work with Lydecker to try and rescue her, but Lydecker betrays them. Zack and Max manage to make it out with Brin, but Brin insists that if, she is to live, she must be taken back to Manticore.

Soon after, Lydecker begins placing wanted posters for Max throughout Seattle. Zack returns to take Max away from the city to somewhere where they will be able to hide. When Max learns that Logan Cale has been admitted to the hospital, he allows her to leave after a short fight. He gives himself to the police and Lydecker in order to keep Max safe.

Zack eventually escapes Manticore, but only after accidentally revealing the locations of most of the other 2009 escapees in the presence of a listening device. With the help of Eyes Only, Zack and Max manage to alert the others that Lydecker and Manticore are aware of their locations. After learning that Tinga is unable to get away, Zack and Max travel to Portland to help her. After safely rescuing Tinga, she and Zack travel to Canada.

Zack again returns to Seattle when Tinga's son, Case, is hunted by Lydecker. After Tinga is captured by Brin and others from Manticore, Zack embarks on a mission to find and rescue her. They eventually find her, but she is dead.

Zach later gives his life to save Max but it is later revealed that Manticore had kept Zack alive by giving him artificial organs after harvesting his real ones for other X5s. After Manticore's destruction, Zack is bought on the black market by a gang of Steelheads, who use him as muscle. When he first sees Max he doesn't remember her, because parts of his brain have been replaced. Slowly his memories come back together and he leaves the gang to help Max and Logan.

After trying to kill Logan, Zack's memory was once again wiped by Max when she electrocuted him to save Logan. Zach was given a new identity: Adam Thompson, a farm worker.