Doc Martin is portrayed as having a different regional identity than the residents of Port Wenn through his appearance and behavior. He wears professional clothing like suits and ties, while the locals wear casual overalls and jackets. Doc Martin is constantly stressed and angry, shown through close-ups, while the Port Wenn residents are laid back with a blasé attitude. Various film techniques like camera work, editing, sound, and mise-en-scene emphasize Doc Martin's alienation from the town and highlight both positive and negative aspects of how his regional identity is portrayed differently from the local identity.