Chuck Norris (right) never bothered to change his acting style, and it's kept him in business for decades.
Playing tough cops or mercenaries with a background in firearms or martial arts, Norris struck his opponents down with force and then kicked them while they were down by letting out a wry smile and a naff joke. The 'Missing in Action' and 'Delta Force' star also made a successful break into TV with the cult series 'Walker Texas Ranger'.
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