Alderton was a wizard living somewhere in the British Isles during the Second Wizarding War. Despite his claims to be half-blood, Alderton was 'interviewed' by the Muggle-Born Registration Commission on 2 September, 1997, and was either sent to Azkaban or stripped of his wand and job.
He most likely attended Hogwarts School of Witchcraft and Wizardry in his youth.
Second Wizarding War and Prosecution
In 1997, after the infiltration of the Ministry of Magic by Lord Voldemort's Death Eaters, he was singled out as being Muggle-born by the Muggle-Born Registration Commission and was tried. He was found guilty during the trial and was therefore led away by two Ministry guards afterwards, either to await imprisonment or to be stripped of his wand and job. As he left the courtroom, he desperately tried to convince the guards that he was a half-blood by claiming that his father was a pure-blood wizard, but was unsuccessful. This is unknown what happened to him afterwards.
Behind the scenes
- He is played by Ned Dennehy credited as "Scared Man".
- Harry Potter and the Deathly Hallows: Part 1 (First appearance)