A handsome action star of TV and the occasional feature film, Hugh O'Brian is best recalled for playing the title role in "The Life and Times of Wyatt Earp" (ABC, 1955-61), which was more a serialized drama than a standard Western. He later reprised the role in the 1991 NBC miniseries "Luck of the Draw: The Gambler Returns" and in "Wyatt Earp Returns to Tombstone" (CBS, 1994).Educated at a military school, O'Brian was reportedly the youngest drill instructor in the history of the Marine Corps when he assumed those duties at age 18. After attending the University of Cincinnati and UCLA, O'Brian