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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. In total, there are 47 recognized credits in film and television. On Cinestia you can browse John Finnegan's complete filmography — 37 films and 10 series — and find where to watch each title.
