Art Fensterman is a recurring character who appears in a total of 37 episodes of Night Court, beginning with the season 1 episode "Some Like it Hot"; his final appearance is in the two-episode, series ending story "Opportunity Knocks". Art is played by Mike Finneran.
Art is a maintennace worker at the Manhattan Criminal Court building. His duties include spraying for pests, elevator maintenance, and other general maintenance duties. A rather bumbling "fix-it-man", his attempts to fix things that go wrong in the courthouse building often disrupts Harry's courtroom proceedings.