Donna Corcoran was the second oldest child of MGM studio policeman Bill Corcoran. When the call went out for child extras for an upcoming MGM production, Corcoran sent Donna down to audition, thereby launching his daughter's six-year film career. Reportedly, screenwriter Dorothy Kingsley selected Corcoran for the important role of Bridget White in Angels in the Outfield (1951) after sitting behind the girl at Mass. Outside of Angels, Corcoran's showiest film assignment was on loan-out to 20th Century Fox, in Don't Bother to Knock in which the poor child was jeopardized by psychotic baby-sitter Marilyn Monroe. After that, her screen roles dwindled in importance. One of her last appearances, as a Quaker child in Fox's Violent Saturday (1955), went uncredited. Featured in that film with Corcoran were her siblings Kevin Corcoran, who went on to a sizeable career at Disney under the nickname of "Moochie," and Noreen Corcoran, who would play John Forsythe's niece in the popular TV sitcom Bachelor Father (1957-1963). By the late '50s, Donna Corcoran decided to retire from show business altogether, leaving the field open to her brothers, Kevin, Brian, and Hugh, and her sisters, Noreen and Kerry (her older brother, Bill Corcoran Jr., became a dentist after briefly pursuing his own acting career).