British actor Damian Lewis' American accent is so perfect he finds it hard to drop when he's not in character for TV drama Homeland. The star studied hard to sound American for TV mini-series Band of Brothers and now admits the dialect comes a little too easy to him. He explains, "I had to concentrate a lot during Band of Brothers for about nine months... and now I wake up on a Saturday morning and I go to the grocery store and I talk in an American accent. "If I meet Americans through the day at a weekend, I'll stay in an American accent all weekend. It's really weird. I can't shake it."