Duff's New Help Ain't So Tuff

9/13/2008 5:30 AM PDT BY TMZ STAFF
Hilary Duff was caught in a gangbang of paps Thursday night -- but her Nicole Richie doppelganger, aka the Duff Nazi, was nowhere in sight to regulate the situation!

Hilary Duff: Click to watch
The Foxtail doorwoman stepped in, but she was a very sorry substitute.