Iain Chambers is a graduated former Ravenclaw. He was in Fred and George's year with Roger Davies, so he graduated in '96. When he was in school, he was a Prefect and the Keeper for the Quidditch team. Out of school, he's been working as an Auror. Since Iain in Muggleborn, he has been on the run since September and has been working at the London school since late October. This sadly keeps him far from his divorced parents, primarily his father in Scotland who works in the Dumfries and Galloway Constabulary.

Iain is a guarded condescending big brother.