Daughter of silent actor Patrick H. O'Malley Jr. and actress Lillian (Wilkes) O'Malley. Kathleen and her sisters Sheila and Eileen, all worked in show business as children. Her first film was "My Old Dutch" (1926). She portrays Herbert Brown as a baby, her sister, Sheila, as Herbert Brown at 3 years old, and her father , Pat, as Joe Brown, ...