Marcel (live animal actor): A Capuchin monkey that Ross initially keeps as a pet, and who provides comic relief for his geeky master. One time Rachel loses him in the city, and calls Animal Control—only to learn from Ross that Marcel is an illegal exotic animal that cannot be kept in the city. After unsuccessfully trying to prevent animal control officer Luisa (Megan Cavanagh) from discovering that they are harboring an illegal exotic animal and bemusing her with their wacky behavior throughout these unsuccessful attempts, Rachel, Monica, Ross and Phoebe learn that Luisa is a former classmate of Rachel's and Monica's who upon recognizing Rachel attempts to spite her for snubbing her in high school by attempting to confiscate Marcel. To prevent this, Rachel threatens to tell Luisa's boss about how she shot Phoebe "in the ass with a dart" that had been meant for Marcel. Later, as Marcel sexually matures and begins to hump everything, Ross has to give him away to a zoo—"where he can have access to regular monkey-lovin'." Ultimately, Ross finds out that Marcel then got stolen from the zoo and taken into a life of show business, and—after starring in a liquor commercial—is starring in a movie in New York, where they are reunited one last time. In a later season Ross questions why he had a monkey as a pet, and in another episode is mentioned during an argument with Joey.