An accent has to do with the way your mouth works and the sounds that come out of your head, but somehow it informs everything about you.
David TennantI always like seeing people transforming themselves, in whatever way that might be, and a different accent is part of that.
David TennantAnd the very fact of how you speak somehow influences who you are. The way you move, the way you think, it seeps into your being, and it's quite hard to really break that down entirely.
David TennantIf you speak in a different accent, you begin to move in a slightly different way. You think in a slightly different way. It's part of trying to find what makes a character.
David Tennant