Major General Kenneth David Nichols is an officer in the United States Army, and a civil engineer who work on the secret Manhattan Project, which developed the atomic bomb at World War II. He is a serious guy in all aspects, but mainly in his work, engaged and reserved. He doesn't have a very far-fetched sense of humor and has difficulty communicating with other people. He is rude to most people for being very honest and overbearing. Doesn't like relationships, and he's a tough guy.