Biographical Information
Name Walker
Alias Unknown
Title --
DOB Unknown
Age Unknown
Physical Information
Status Arrested
Nationality American
Gender Male
Skin Caucasian
Relationship Information
Family Unknown
Affiliations CIA (former); SCORPIA
Occupation Unknown
Series Information
First Appearance Scorpia
Last Appearance Scorpia
Mentioned Scorpia Rising (possible)[1]
Walker was a student at the SCORPIA training facility on Malagosto. He was a minor antagonist in the novel Scorpia.[2][3]


Walker spent five years with the American CIA in Washington before switching sides. He joked with Alex Rider about going mad.[2][3]

It is unknown whether Walker is part of his name or his true name at all.

Role in Series


Alex trained alongside Walker during his short time as a Scorpian.[2]

Scorpia Rising

It was mentioned in Scorpia Rising that when the events in Egypt simmered down that all but a few of the members of the criminal organization SCORPIA were rounded up and arrested. One could assume that Walker was one of those many.[1]


  1. 1.0 1.1 Scorpia Rising by Anthony Horowitz (primary)
  2. 2.0 2.1 2.2 Scorpia by Anthony Horowitz (primary)
  3. 3.0 3.1

Scorpia Characters
Main Characters
Alex RiderAlan BluntTulip JonesJack StarbrightJulia RothmanNile
Other Key Characters
Graham AdairSmithersMark KellnerGeorge AdairTom HarrisJerry HarrisHarold Liebermann