John Finnegan
Born on 18 Aug 1926Place of birth: New York City, New York, USADied on 29 July 2012
Known for: Acting
Biography
John P. "J.P." Finnegan was an American film and television actor, mostly known for his recurrent role on the American crime fiction series Columbo. He voiced the villainous character Warren T. Rat in the 1986 Don Bluth film An American Tail.