Dr. Robert Neville (I Am Legend)
I Am Legend was scheduled to come out in the middle of the 1990s. The main candidates were Tom Cruise, Michael Douglas, and Mel Gibson. But it was Arnold Schwarzenegger who got this role.
According to the plot, it was a very dark film with almost no dialogue during the first hour. Such an idea seemed to be impossible and dull, and the filming was canceled. In 2002, the project came alive but with Will Smith as the main hero. And Schwarzenegger became a director.