A Magical Maintenance employee at the Ministry of Magic, whom Ron impersonates using Polyjuice Potion in order to infiltrate the Ministry. Reg appears to be on the side of good, given that none of the known Death Eaters or supporters are nice to him. On the day that the trio sneak in, Reg's wife is scheduled to go on trial for being Muggle-born.
Reg Cattermole Character Timeline in Harry Potter and the Deathly Hallows
The timeline below shows where the character Reg Cattermole appears in Harry Potter and the Deathly Hallows. The colored dots and icons indicate which themes are associated with that appearance.