Everyone has an accent. To oneself and to those who sound like us, we would admit we do not have an accent. But, someone from another culture who speaks the same language and sounds different than us would say we have an accent. I've often found myself admitting that certain British actors have a great American accent in movies/television shows. Colm Meaney in "Hell on Wheels"; Damian Lewis in "Band of Brothers" and Lennie James in "The Walking Dead/Fear the Walking Dead" are all perfect examples of British actors with excellent American accents.