<P> Justin Anderson (Justin Theroux) is a lawyer and long - time friend of Ann who briefly dated Leslie . He is very charming, regularly travels around the world and has done many extravagant things, such as mountain climbing . He loves telling entertaining stories, and sometimes seems less interested in the people around him than he is in listening to and learning new stories . Justin and Ann never dated, but she seems to secretly harbor romantic feelings for him, something that caused difficulties between Ann and Andy when they were dating . Justin first appears in "The Set Up", when he provided legal advice to the Parks and Recreation department, and Leslie developed a romantic interest in him . She asks Ann to set them up, but she hesitated to do so, prompting Mark to accuse her of still having feelings for Justin . Ann finally sets up a date, and the two start dating regularly . Impressed by Justin's worldliness, Leslie was so determined to impress him with a house party that, in "Leslie's House", she abused her government power by recruiting town employees to provide entertainment . Justin made his final appearance in "Galentine's Day", when Justin and Leslie tried to find Frank Beckerson, the long - lost love of Leslie's mother Marlene, and reunite the two . Upon finding him, Leslie quickly realized Frank is too strange and tried to call the plan off, but Justin insisted on going through with it . After the evening ends disastrously, Ron points out to Leslie that Justin is a selfish person who only cares about getting more stories, so she breaks up with him . Tom, who strongly admired Justin's hipness and idolized him, became extremely disappointed by the break - up and reacted like a child whose parents are divorcing . </P> <P> Li'l Sebastian is a miniature horse, who debuted at the Pawnee Harvest Festival in 1987, as an instant sensation . That week he was the eighth most photographed item in the United States . He also received an honorary degree from Notre Dame . Leslie brings him back for the Harvest Festival in season three, although he was much older and had many ailments, including cataracts, diabetes, and arthritis . His return brought excitement and joy to all of Pawnee, except for Ben, who didn't understand what made him so special . In the season three finale, Li'l Sebastian dies, and everyone is devastated (except for Ben, who still doesn't understand) Leslie used Tom's company, Entertainment 720, to give Li'l Sebastian a funeral . Andy then writes the song "5000 Candles in the Wind" to honor Li'l Sebastian . </P> <P> Professor Linda Lonegan (Danielle Bisutti) was Andy's Women's Studies professor . She first appeared in Smallest Park, where she made quite an impression on Andy, April, and particularly Ron . Ron even stated "If that woman wasn't so violently opposed to marriage, I'd propose to her". When Andy finished the course, Linda went to dinner with them to celebrate, where April tried to set her up with Chris . Although Linda seemed to have a connection with Chris, she went home with Ron, revealing her attraction to him, for the entire night . </P> <P> Lucy (Natalie Morales) is a bartender at the Snakehole Lounge and the eventual wife of Tom Haverford . Lucy meets Tom in "The Master Plan" after he came to the bar to settle his tab from the night before, when he unsuccessfully attempted to pick up several girls by buying drinks for them . Rather than try to pick up Lucy like the other girls, he simply acts like himself, and the two end up hitting it off and started dating . Lucy is intelligent and funny, and she freely accepts Tom's immature and sometimes inappropriate personality . She jokingly claimed to be attracted to Tom because, "You're cute and you're small enough for me to throw you around ." However, it eventually became clear to Lucy that Tom was not over his ex-wife Wendy, particularly due to how upset he got when Ron Swanson starts dating her . In "Time Capsule", Lucy broke up with Tom, but told him he should call her if he ever gets over Wendy . In "End of the World," Lucy attends Tom's "best party of all time," the two have a good time, and she kisses Tom the next morning, hinting at the possibility of their relationship starting up again . Tom and Lucy rekindle their relationship in Season 7, and Tom proposes to Lucy, which she accepts, in "Two Funerals". </P>

Who plays andy's teacher in parks and rec