Trivia: Sean Connery started going bald when he was 21. In 'Dr. No' (he was 32 then) and any subsequent movies in which he has hair, he was actually wearing a hairpiece.
Upvote valid corrections to help move entries into the corrections section.
Suggested correction: Contrary to popular belief, Sir Sean Connery was not wearing a hairpiece in his first two outings as James Bond. Although he was already balding by the time Dr. No was in production, he still had a decent amount of hair and the filmmakers used varying techniques to make the most of what was left. By the time of Goldfinger (1964), Connery's hair was too thin and so various toupees were used for his last Bond outings.