The Ministry employee whom Harry impersonates when the trio infiltrates the Ministry of Magic. They know nothing about him when they pull him off the street, but it soon becomes clear that Runcorn is a feared and high-level supporter of Voldemort, though not a Death Eater. Though Harry has no idea how much power Runcorn actually has at the Ministry, he's able to use Runcorn's power to help all the Muggle-borns awaiting trial escape.
Albert Runcorn Character Timeline in Harry Potter and the Deathly Hallows
The timeline below shows where the character Albert Runcorn appears in Harry Potter and the Deathly Hallows. The colored dots and icons indicate which themes are associated with that appearance.
...here. They and the Muggle-borns squeeze into two elevators and, at the Atrium, Harry uses Runcorn's power to command employees to stop sealing off Floo fireplaces. Harry threatens one man who... (full context)