I work in a big company where I'm one of two Asian guys in my department, and most of my coworkers can't tell us apart. Almost every day someone will email one of us intending to talk to the other one. When this happens I usually reply and say something like "This is Mark, Brad's email is xxx". It hasn't helped and often they'll keep emailing me more business-confidential information. I've also had emails missing since they went to Brad instead of me. My coworkers will come over to my desk, which has a nametag, and start asking for updates on the project Brad's working on. We are about the same age, but he and I don't really work on much together and I've only seen him a couple times in the year I've been here. How would you recommend dealing with this?
To me, it sounds like someone, somewhere got confused (very likely innocently), and then documented it incorrectly. So that YOUR name has gone down as the person working on Brads project.
The part that suggests it to me is
"My coworkers will come over to my desk, which has a nametag, and start asking for updates on the project Brad's working on"
They're not asking for Brad, and they're sure you're you; but they ARE asking for project updates. It would also explain the emails because they believe they're sending the emails to the right person; because it's you that's working on the project.
I would go talk to the project manager on that project, and tell them that "people keep asking me for updates when I think they mean Brad, is my name down on the project incorrectly" and see what comes out of it.