John Finnegan
- Nacimiento
- 18 de agosto de 1926
- Fallecimiento
- 29 de julio de 2012 (85 años)
- Lugar de nacimiento
- New York City, New York, USA
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.
