A difficult childhood sent Chuck Norris in search of discipline in his adulthood, which he found in martial arts. His success as a competitive fighter and trainer subsequently led to an equally successful acting career that saw him starred in a string of popular low-budget, action-oriented features in the 1970s and 1980s. He found his greatest success on the small screen, however, as the star of “Walker, Texas Ranger” (CBS, 1993-2001), which drew sizable ratings throughout its long network run. His tough guy image and stoic performances – once the object of derision by mainstream critics –