Season 2

1. Jackal Onassis Backstage Party

The crew cater a backstage party for rock star Jackal Onassis ( Jimmi Simpson ). Casey returns to the team after Henry fires an employee ( Danny Woodburn ) for being late and drinking on the job. Jackal Onassis switches place with Roman, acting as a bartender named "Dennis", so he could feel like a real person, after admitting everything in his life is fake. Even though Roman is dressed in Jackal Onassis' wardrobe and people think he is him, he still has no luck with the women there. New member of the team Lydia ( Megan Mullally ) tries to help Casey in dealing with the awkwardness of being back on the team and around Henry.

Henry learns that Casey is dating someone and she finds out he is dating Uda. Ron comes to the backstage party with his new girlfriend Mandy ( Aviva ), who is a big Jackal Onassis fan. After Ron finds out Roman (dressed as Jackal) signed his girlfriend's breasts, he attacks him, causing security to taser Ron. Henry then gets in trouble when security finds out Ron and Mandy were allowed in uninvited. "Dennis" then takes the blame, letting Henry fire him. Ron asks Henry if he can get Alan Duk to give him his job back after it is revealed his "Soup 'R Crackers" franchise failed.

2. Precious Lights Pre-School Auction

Ron returns to the Party Down team, though working for Henry, who is still the team leader. Ron begins acting like Henry did when he was leader, causing problems for Henry. At the auction event, Casey helps out the chairwoman Annie LeGros ( Andrea Savage ), who has to raise $250,000 so her son will get a recommendation letter for the pre-school, when she learns she used to be an actor. Leonard ( J. K. Simmons ) and Diandra Stiltskin ( Joey Lauren Adams ) appear at the auction, with their prize being meeting Tom Hanks, though Leonard tells his wife he is actually unable to get Hanks, meaning he'll have to outbid anyone for it.

When time is running out for the auction and they still have not raised enough money, Casey tells Annie to bid on the Tom Hanks prize, causing Leonard to bid another $20,000, which brings the total to $250,000. Casey gets good news when she learns she got a small part in a Judd Apatow film, believing it will be her big break. Leonard finds out Henry told people about his prize, which cost him more money, and then promises Henry he'll never work again as an actor.

3. Nick DiCintio's Orgy Night

The crew cater an orgy party hosted by Nick DiCintio ( Thomas Lennon ), though none of the guests knew it was going to be an orgy party. Ron tries to deal with his break-up with his girlfriend Mandy, while Henry deals with problems with his girlfriend Uda. When the party is not going the way Nick wants, he asks Roman for tips to help set the mood to get the orgy going. Kyle's film about base jumping goes straight to DVD and is crushed when one of the women working the party tells him he'll never make it in Hollywood, and seeks reassurance from Roman. Lydia is interested in Nick, but he never shows any interest back. Finally, at the end of the night, people start to loosen up, but Nick tells the Party Down team no actual orgy happened.

4. James Ellison Funeral

When catering a funeral reception, Ron begins to think about death and if his life has any meaning. Kyle asks one of the guests to teach him about blues from who he thinks is an actual bluesman, though it ends up being a joke, but he still thinks it was about learning the blues. When the mistress ( Arden Myrin ) of the deceased shows up to the reception, Henry tries to keep her away from the widow ( Loretta Devine ).

5. Steve Guttenberg's Birthday

The crew are set to cater a birthday party for actor Steve Guttenberg at his house, but when he shows up, he tells them his friends already threw him a surprise party the previous night. He ends up inviting the Party Down crew in his house for a party and tells them to invite any friends. Ron returns as an improved man after entering into AA. Kyle invites Colette, a girl from his acting class, hoping to hook up with her. Roman invites his writing partner Kent ( Christopher Mintz-Plasse ), where they are working on a script.

Guttenberg suggests that they act out their screenplay, to get a better perspective on the material. After finishing a scene, everyone suggests it needs more emotion, leading Kent and Roman to rewrite it, much to Roman's dismay. When reacting out the scene, it leads to Henry and Casey kissing. Later when both in the jacuzzi, Casey kisses him again, but Henry holds back, because he has a girlfriend. Casey then leaves. At the end of party, everyone leaves, although Colette stays behind with Steve Guttenberg, leaving Kyle behind on the way out the door.

6. "Not On Your Wife" Opening Night

The crew cater a community theater after party, where Kyle promises to help his old mentor ( Jim Piddock ), by seducing a wealthy female patron ( Rachael Harris ), in hoping she'll donate enough money to save the theater. Roman is treated like a king by two of the stage actors ( Rob Huebel and Kerri Kenney-Silver ) after he tells them he is a writer. Ron misreads Lydia thinking she is interested in him, leading to an awkward encounter where he kisses her. Casey continues to pursue Henry, which leads to them kissing again. The night is filled with plenty of miscommunications leading to several secrets being exposed.

7. Party Down Company Picnic

Valhalla Catering caters the Party Down company picnic, leading to competition between the two staffs to see who are the better caterers. Ron competes for the Operations Manager position at the main office by trying to impress the new owner, Bolus Lugozshe ( Michael Hitchcock ). Kyle teaches Lydia's daughter, Escapade ( Kaitlyn Dever ), the ways of Hollywood. Ron hits it off with Bolus Lugozshe's daughter, Danielle ( June Diane Raphael ), who helps try him get the new job. Henry plans on breaking up with Uda ( Kristen Bell ), who is catering the event and tells Henry she was offered the Operations Manager position and could get him a job in the main office, securing them both with good jobs.

Though Uda eventually tells Henry she feels the same way about their relationship, leading to a mutual break up. Henry then decides to step down as team leader, offering the position back to Ron. And Ron finds out Danielle is actually engaged.

8. Joel Munt's Big Deal Party

Roman finds out they are catering a party for his old writing partner, Joel Munt ( Paul Scheer ), who hired Party Down just to rub his success in Roman's face. Roman finds out he sold his spec script for an adaption of a science fiction novel written by AF Gordon Theodore ( Dave (Gruber) Allen ). Now that Ron is back in charge, Henry goes back to his old ways by fooling around with Casey, now that they are back together. Kyle is excited to cater the party as plenty of producers are present, trying his best to get auditions.

Lydia mistakenly sniffs cocaine after given some in the bathroom and talks to Scott ( Andre Royo ), a film producer about ideas for his upcoming film. Roman spends the night trying to get revenge on Munt believing he is a sell-out, and succeeds when he is able to convince the author he will not stay true to the novel. Munt eventually apologizes to Roman for his actions and they begin thinking how to translate an unseen character from the novel to the screen while staying true to the novel. Though Munt ends up stealing Roman's idea which gets him back on board with the author.

9. Cole Landry's Draft Day Party

The crew cater a party for college quarterback Cole Landry ( Aaron Hill ) who is expected to be drafted by the NFL and the party will be broadcast on television. Ron tells Henry of a personal health concern, which Kyle overhears. Ron also wants everyone to not use their cellphones because complaints they've been receiving. Kyle gets news that if he can leave early, his band will be able play a gig, but Ron denies his request. Kyle then plays a prank on Ron by using the information he heard earlier by getting one of the guests ( Daniel Franzese ) who is pre-med to inform Ron he might have prostate cancer.

Henry gets advice from Jerome, one of the football players, who thinks he is being treated unfairly by Casey. When Landry does not get drafted due to rumors of him being gay, Casey poses as his girlfriend for television. The rumor is confirmed on television when a photo is shown of him kissing another man, which Jerome sees who then confronts Cole about it live on television—with Casey in the middle of it.

10. Constance Carmell Wedding

Constance ( Jane Lynch ) reunites with the Party Down catering crew when she hires them to cater her wedding to Howard Greengold ( Alex Rocco ), a former film producer. Casey and the others are worried about her decision as Howard has been married nine times and cheated on them and that Constance may only be marrying him because he is thinking of getting back into the film business. Kyle is confused about a script for a film he is auditioning for, so he gives it to Henry so he can explain it to him.

Bolus Lugozshe and his daughter Danielle along with her fiancé Stuart ( John Ross Bowie ) attend the wedding, where Danielle tells Ron she thinks they should end their affair because if her father finds out, Ron might get fired. Roman accidentally eats food with marijuana in it and comes up with an idea for what he thinks is his best script yet. Howard's daughter Mona ( Jennifer Irwin ) makes Constance sign a prenuptial agreement. Kyle and his band Karma Rocket perform at the wedding, though the song's lyrics (" My Struggle ") accidentally make references to Nazi propaganda and the Holocaust.

After taking advice from Constance, Ron confesses his love to Danielle—in front of everyone, including her fiancé–and ends up getting punched by Stuart. Danielle ends up choosing Ron over her fiancé, and finds out her parents are getting a divorce—giving ownership of Party Down to her mother. Lydia then gets together with Bolus. Casey learns that her scene from the Judd Apatow film got cut out, and Henry tries to comfort her. When Constance and Howard leave the ceremony, he dies in the car—but Constance is thankful for every day she was with him and it is revealed he did not sign the prenuptial papers. The following day, Henry does not show up to work and instead goes in for the audition for the script he read.