Once hailed by acclaimed director D. W. Griffith as "the greatest natural actress now in pictures," Una Merkel (1903-1986) was a rare individual in Hollywood's Golden Age. Humble, self-effacing, and egoless, she confessed to having great insecurities and an inferiority complex. Never aspiring to be a star, she was more interested in good roles, regardless of their size, which often meant supporting the more important actors of her day-Jean Harlow,...