Alexander "Alex" Teller was the younger of the two Teller brothers, with his brother Jacob Teller. They were both COLAs.


He had brown hair and blue eyes.


Alex and Jacob were telepaths and mimics. They could communicate with others in their heads and mimic other people's voices.

He and his brother are one of the True Eleven at the end of Dowsing the Dead.

In Going to Ground, Alex reveals that he and his brother were asked to come and mimic Gideon Reader and Luke Reader's dad, Michael Reader, in order to allow the government to capture them.


The Teller Brothers were named after Ali Sparkes' children: Alex and Jacob.