Ian Fleming wanted his cousin Christopher Lee
to play Dr Julius No in the first James Bond film. Had Lee
instead of Joseph Wiseman got the role he might have
been the only actor to have played two different villain
in the 007 series.
He was an RAF Air Intelligence Officer in the Western Desert and then was associated with Special Operations, something he never talked about saying (as is typical of his generation) that he had signed the Official Secrets Act swearing to keep these matters confidential until officially informed that he could speak about them, and that he was a man of his word.