Wilson) is the assistant district attorney who sometimes frowns on Walker’s methods but is usually susceptible to his charms. Walker is assisted by his young partner Jimmy Trivette ( Clarence Gilyard), a former pro football player who grew up in inner city Baltimore. The champion martial artist and action film icon plays Cordell Walker, a Dallas-based lawman who operates by his own set of rules. After nearly two decades as a movie star, Chuck Norris brought his karate kicks to primetime in this contemporary Western series.