One of the mainstays of Dublin's Abbey Players, Irish actor Denis O'Dea made his screen debut in the company of several other Abbey performers in John Ford's The Informer. O'Dea's later movie roles included Dr. Livesey in the 1950 Disney-produced version of Treasure Island. He was usually cast as dour Irish police officers (Odd Man Out, 1947) or outspoken priests (Darby O'Gill and the Little People, 1959). Denis O'Dea was married to Irish stage and screen actress Siobhan McKenna. ~ Hal Erickson, All Movie Guide