John Finnegan
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.
Filmography
ER
Columbo
Murder, She Wrote
Quincy, M.E.
Matlock
Beyond Belief: Fact or Fiction
McCloud
Banacek
The Natural
Rich Man, Poor Man - Book II
The Amazing Spider-Man
JFK
Mars Attacks!
Last Action Hero
An American Tail
Vegas Vacation
A Woman Under the Influence
Gloria
The Journey of Natty Gann
Capone
The In-Laws
The Killing of a Chinese Bookie
Heroes
Come See the Paradise
Little Miss Marker
The Last of the Finest
Opening Night
Love Streams
Bloodbrothers
Nickelodeon