9. Benedict Arnold (The Ultimate Traitor)
He was known to be a very popular and an early leader in the revolutionary war in America. Being an American, he was loved by many, but he had his reputation soiled and image tarnished due to his betrayal. We knew the ultimate traitor to have switched sides during times of war. Being an American, he also fought for the British.
As a result of his treacherous activities, he has gone down in the history of the United States as one of the most infamous traitors to have ever originated from America.
