<P> James Michael Tyler was cast as Gunther because he was the only extra who could competently work the cappuccino machine on the Central Perk set . Tyler appears as Gunther in a co-host voice - over in the Friends trivia game for PS2, PC and Xbox, and in the board game Friends: Scene It? . The Seattle Times ranked Gunther as the eighth best guest character of the series in 2004 . When asked in 2009 by Heatworld.com what Gunther would be doing "now", Tyler joked, "He'd probably have a very traditional marriage, with lots of white - haired babies running around with hair brighter than the sun ." Aside from the main cast, he appears in the most episodes . </P> <P> 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 . </P> <P> Janice Litman Goralnik (née Hosenstein) (Maggie Wheeler): Chandler's on - again, off - again girlfriend for the first four seasons . Janice is one of the few characters besides the six main friends who appears in all of the Friends seasons . She has a nasal voice and a thick New York accent that sounds so irritating that it makes Chandler want to break up with her, but at the same time he does not want to hurt the nonetheless good - natured Janice's feelings, and while making a hand gesture in the midst of an attempt to break up with her without upsetting her, he accidentally pokes her in the eye in "The One with the East German Laundry Detergent" and although Phoebe is eventually able to explain to Janice on his behalf that he wants to end their relationship and get her to agree to break up with him without upsetting her in the process, he gets back together with her for New Year's and for Valentine's . When Chandler, in the wake of Mr. Heckles' death, resolves not to die alone, he is disappointed to discover that she is married and pregnant . In "The One with Barry and Mindy's Wedding", Chandler arranges a meeting with a mystery woman over the Internet, who turns out to be Janice . Their relationship lasts into the third season, when Janice decides to leave her husband to be with Chandler . Later, Joey sees Janice kissing her husband, who runs a mattress business . Chandler dumps her in "The One with the Giant Poking Device". When Janice returns to his life, Chandler, who eventually comes to find her insufferable due to the irritating sound of her voice, pretends to be moving to Yemen to get away from her . In a later episode, the tables are turned on the annoying natured Janice when she has a brief fling with Ross shortly after he has broken up with Emily, as he is unhappy and spends the entire date complaining about everything, causing her to find him insufferable and leave him (Ross had expected the reverse to eventually happen, but had been happy to date someone who listened so well to him in the meantime). She also makes a cameo on a "discovered" mix tape that Chandler plays for Monica, not knowing Janice's voice is on it . When Chandler and Monica become engaged, she tries to interfere with their wedding plans--leaving only when Monica states that Chandler still has feelings for Janice, which is not true . When Ross and Rachel await the birth of their daughter Emma, she is placed in the same labor room as Rachel at the hospital; she later gives birth to a son, Aaron, who she jokes will be Emma's future husband . As Monica and Chandler make plans to have children, she offers Chandler advice and support at a fertility clinic . In "The One Where Estelle Dies", she comes close to buying a house next door to the one Monica and Chandler want to buy . To get rid of her, Chandler pretends he still loves her, causing her to (as he had hoped) become fearful that he will end up ruining his marriage and she will end up ruining her own (as she still loves Chandler as well) if she lives next door to him, so she decides not to buy the house after all and walks out of Chandler's life seemingly for good, but does kiss him one last time before she does, much to his surprise . </P> <P> Presumably due to being amused by their wacky, quirky, goofy personalities, Janice seems to enjoy spending time with the six friends, which is somewhat ironic and very much inconvenient for them since none of them can stand to be around her (although she seems to be completely blind to the fact that they feel this way, showing almost no awareness whatsoever of the fact that they hate having to put up with her), due to the unbearably irritating nasal New York accent she speaks with, and her annoying machine gun laugh . She also emphasizes each word of her catchphrase, "Ohhh--myyy--Gawd!", and Chandler sometimes imitates her doing this . Janice's distinctive laugh was borne out of a slip - up Wheeler made during the rehearsal of "The One with the East German Laundry Detergent"; after Chandler and Janice's "More latte?" / "No, I'm still working on mine" lines, Wheeler laughed . The Seattle Times ranked Janice as the best guest character of the series in 2004 . </P>

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