Recorded over 400 songs in his native England and spent four years as vocalist with Jack Hylton's orchestra before emigrating to the U.S.
Voiced several Audio-Animatronic characters in Disney's "Pirates of the Caribbean" attraction, including the original voice of the pirate dunking the magistrate in the well and as one of the prisoners coaxing the dog with the keys in his mouth.
When he began his career, he was known as Pat O'Malley, but when he arrived in Hollywood, he became known professionally as J. Pat O'Malley to avoid confusion with the actor Pat O'Malley.
Father: Francis O'Malley; Mother: Frances Elizabeth Lea.