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.
2000The IndependentMovieas Guard1997Beyond Belief: Fact or FictionTV showas Jerome Metz (segment "The Magic Rose Garden") · 1 episodes1997Vegas VacationMovieas Hoover Dam Guide1996Mars Attacks!Movieas Speaker of the House1994ERTV showas Mitchell · 1 episodes1993Last Action HeroMovieas Watch Commander1991JFKMovieas Judge Haggerty
1990Come See the ParadiseMovieas Brennan
1990The Last of the FinestMovieas Tommy Grogan
1989Big Man on CampusMovieas Judge Ferguson
1989Finish LineMovieas Purdy Hall1986An American TailMovieas Warren T. Rat (voice)
1986Big TroubleMovieas Det. Murphy
1986The Deacon Street DeerMovieas Sidney1986MatlockTV showas Mr. Gillespie · 2 episodes1985The Journey of Natty GannMovieas Logging Boss
1984The Hoboken Chicken EmergencyMovieas Policeman1984Murder, She WroteTV showas Uncle Charlie · as Douglas Foudy · 1 episodes1984The NaturalMovieas Sam Simpson1984Love StreamsMovieas Taxi Driver (Animals)
1982Terror at AlcatrazMovieas Murphy
1982Rehearsal for MurderMovieas Damon1980GloriaMovieas Frank
1980Little Miss MarkerMovieas Casino Clerk1979The In-LawsMovieas Deliveryman #1
1978BloodbrothersMovieas Bartender
1978The Amazing Spider-ManTV show1 episodes
1978Nowhere to RunMovieas O'Neil1977Opening NightMovieas Bobby
1977HeroesMovieas Mr. Munro
1977LucanMovieas Jess
1976NickelodeonMovieas Kathleen's Director1976Quincy, M.E.TV showas Joe Ives · 1 episodes
1976Rich Man, Poor Man - Book IITV showas Reporter · 1 episodes
1976Street KillingMovieas Alex Lesko1976The Killing of a Chinese BookieMovieas Taxi Driver
1976Mallory: Circumstantial EvidenceMovieas Deputy Marshal Vieter1975CaponeMovieas N.Y. Police Lt.
1975Conspiracy of TerrorMovieas Sgt. Carroll
1975Ellery Queen: Too Many SuspectsMovieas Matthew Thomas Cleary1974A Woman Under the InfluenceMovieas Clancy
1974Terror on the 40th FloorMovieas Stark
1972Play It as It LaysMovieas Frank
1972BanacekTV showas Lt. Hallohan · 1 episodes1971ColumboTV showas Guard · as Police Chief · as Lieutenant Dreyer · as Sean Jarvis · as Carl · as Barney · as Workman #1 · as Sergeant · as Quentin Corbett · as Assistant Director · 3 episodes
1970McCloudTV showas Doorman · as Mounted Sergeant · as 1st Sergeant · as Detective (uncredited) · 1 episodes