The Simpsons: Season 21

2009
23 episodes

Season 21 of The Simpsons premiered on September 27, 2009 and has 23 episodes, from "Homer the Whopper" to "Judge Me Tender". The last episode aired on May 23, 2010.

Where to watch The Simpsons

In the United States, you can stream The Simpsons on Hulu, Disney Plus, fuboTV and YouTube TV. You can also buy it on Amazon Video, Apple TV Store, Google Play Movies and Fandango At Home. It is on streaming services in 61 countries.

Where to watch

Episodes

Episode 1Homer the WhopperAired September 27, 2009
Homer gets the lead in a movie about a superhero who can take on the powers of every superhero in any comic book he touches. To whip Homer into superhero shape, the studio hires a celebrity fitness trainer.
- 22m
- Directed by Lance Kramer
- Written by Evan Goldberg and Seth Rogen
Guest stars
- Matt Groening Matt Groening (voice)
- Kevin Michael Richardson Security Guard (voice)
- Seth Rogen Lyle McCarthy (voice)
- Pamela Hayden Milhouse Van Houten / Bank Teller / Writer #4 (voice)
- Tress MacNeille Woman in the Theater / Writer #2 (voice)
- Karl Wiedergott Writer #1 / Writer #3 (voice)
Episode 2Bart Gets a 'Z'Aired October 4, 2009
The fourth grade students of Springfield Elementary School decide to spike Ms. Krabappel's coffee in order to teach her a lesson after she takes away their cell phones. She is fired by Principal Skinner, who hires a new teacher named Zachary Vaughn. Although Vaughn is a hip young teacher who impresses the students, Bart is plagued by guilt and tries to get Ms. Krabappel hired back.
- 23m
- Directed by Mark Kirkland
- Written by Matt Selman
Guest stars
- Marcia Wallace Edna Krabappel (voice)
Episode 3The Great Wife HopeAired October 11, 2009
The men and boys in Springfield become obsessed with Ultimate Punch Kick and Choke Championships, a violent sport where fighters inflict severe pain on each other. When Marge and her friends stage a protest against the sport, the show's promoter embraces the controversy and challenges Marge to a match, promising to shut down the competition if she wins. She begins to train with rhythmic gymnastics, but her family step in and get her professional martial arts help to give her a real chance at winning.
- 22m
- Directed by Mark Kirkland
- Written by Matt Selman and Carolyn Omine
Guest stars
- Russi Taylor Martin Prince (voice)
- Marcia Wallace Edna Krabappel (voice)
- Karl Wiedergott Additional Voices (voice)
- Chuck Liddell Chuck Liddell (voice)
- Tress MacNeille Crazy Cat Lady / Bernice Hibbert / Dolph (voice)
- Maggie Roswell Luann Van Houten / Helen Lovejoy (voice)
- Pamela Hayden Milhouse Van Houten / Jimbo Jones / Sarah Wiggum (voice)
Episode 4Treehouse of Horror XXAired October 18, 2009
Dial "M" for Murder or Press "#" to Return to Main Menu- Lisa is forced into a Hitchcockian murder scheme by Bart. Don't Have a Cow, Mankind- Springfield is once again overrun by zombies, thanks to Krusty Burger's latest sandwich. There's No Business Like Moe Business- In a Sweeney Todd spoof, Moe bleeds Homer dry to create the perfect microbrewed great beer.
- 23m
- Directed by Mike B. Anderson
- Written by Daniel Chun
Guest stars
- Marcia Wallace Edna Krabappel (voice)
- Pamela Hayden Jimbo Jones / Dracula's Wife / Rod Flanders (voice)
- Maggie Roswell Wolfman's Wife / Miss Hoover / Helen Lovejoy (voice)
- Karl Wiedergott Zombie Nurse / Sergeant (voice)
- Tress MacNeille Dolph / Agnes Skinner / Mrs Muntz / The Mummy's Wife (voice)
Episode 5The Devil Wears NadaAired November 15, 2009
Marge and a group called the "Charity Chicks" pose for a calendar in hopes of raising money for charity, but Marge becomes the talk of the town thanks to her racy poses. Meanwhile, Carl is chosen as the newest supervisor at the nuclear power plant, and hires Homer to be his personal assistant.
- 23m
- Directed by Nancy Kruse
- Written by Tim Long
Guest stars
- Marcia Wallace Edna Krabappel (voice)
- Maggie Roswell Luann Van Houten (voice)
- Russi Taylor Uter (voice)
- Tress MacNeille Bernice Hibbert / Agnes Skinner / Carla Bruni-Sarkozy (voice)
- Pamela Hayden Milhouse Van Houten / Sarah Wiggum / Rod Flanders (voice)
Episode 6Pranks and GreensAired November 22, 2009
Principal Skinner is getting fed up with Bart's pranks, so he informs Bart that he is not the best prankster after all. A former student named Andy Hamilton is hailed as the best prankster, and Bart sets out on a mission to track Andy down. However, when Bart finds out that Andy is a 19-year-old still in his pranking days, they become fast friends.
- 22m
- Directed by Chuck Sheetz
- Written by Jeff Westbrook
Guest stars
- Jonah Hill Andy Hamilton (voice)
- Marcia Wallace Edna Krabappel (voice)
- Pamela Hayden Milhouse Van Houten (voice)
- Tress MacNeille Majula / Noah's Mother / Additional Voices (voice)
- Maggie Roswell Mother #2 (voice)
Episode 7Rednecks and BroomsticksAired November 29, 2009
Lisa befriends three teenaged Wiccans after getting lost in the woods during a game of hide-and-seek, and must clear her new friends' names when they are accused of cursing the townspeople with their supposed witchcraft. Meanwhile, Homer befriends Cletus after learning that he and his friends make their own moonshine.
- 22m
- Directed by Bob Anderson and Rob Oliver
- Written by Kevin Curran
Guest stars
- Neve Campbell Cassandra (voice)
Episode 8Oh Brother, Where Bart Thou?Aired December 13, 2009
One snowy day in Springfield, Lisa informs Bart that she and Maggie share a bond that Bart will never understand because he doesn't have a brother, so Bart asks Homer for a baby brother. When Homer denies Bart's request, Bart makes his way to the Springfield Orphanage to find what he thinks he's missing.
- 23m
- Directed by Steven Dean Moore
- Written by Matt Selman
Guest stars
- Peyton Manning Peyton Manning (voice)
- Cooper Manning Cooper Manning (voice)
- Huell Howser Huell Howser (voice)
- Jordan Nagai Charlie (voice)
- Eli Manning Eli Manning (voice)
- Kim Cattrall Fourth Simpsons Child (voice)
- Pamela Hayden Milhouse Van Houten / Jimbo Jones (voice)
- Russi Taylor Martin Prince / Sherri / Terri / Sisters (voice)
Episode 9Thursdays with AbieAired January 3, 2010
Grampa is sitting on a bench waiting for his family when a thoughtful-looking man named Marshall Goldman approaches him and asks to hear about his life. Grampa tells Goldman about the time he was on a World War II battleship, which was hit by an enemy torpedo, and Goldman, a human-interest columnist, publishes it in The Springfield Shopper. Later, Grampa meets Mitch Albom and shares another story with Goldman for a follow-up article. Homer becomes jealous of Grampa's newfound fame and seeks a surrogate father. But when Homer discovers a draft of Goldman's third story, he must race to find Grampa before it is published and his life is changed forever.
- 23m
- Directed by Michael Polcino
- Written by Don Payne and Mitchell H. Glazer
Guest stars
- Russi Taylor Martin Prince (voice)
- Marcia Wallace Edna Krabappel (voice)
- Pamela Hayden Milhouse Van Houten (voice)
- Tress MacNeille Slimu Host / Agnes Skinner (voice)
- Mitch Albom Mitch Albom (voice)
Episode 10Once Upon a Time in SpringfieldAired January 10, 2010
Krusty grudgingly adds a pretty, singing cohost named Princess Penelope to his show in order to attract more female viewers. Girls love her, and ratings improve, but Bart and Milhouse want to get the show back to the way it was. The situation gets more complicated when Krusty and Penelope fall in love and decide to get married. Meanwhile, Homer, Lenny, and Carl consider working at a competing nuclear plant when Mr. Burns cuts off their daily doughnut service.
- 22m
- Directed by Steven Dean Moore and Matthew Nastuk
- Written by Matt Selman and Stephanie Gillis
Guest stars
- Anne Hathaway Princess Penelope (voice)
- Eartha Kitt Eartha Kitt (voice)
- Gary Larson Gary Larson (voice)
- Jackie Mason Hyman Krustofsky (voice)
- Maggie Roswell Miss Hoover (voice)
- Pamela Hayden Milhouse Van Houten / Janey Powell (voice)
- Maurice LaMarche Gate Guard #1 (voice)
- Tress MacNeille Krusty's Agent / Holly Hippie (voice)
Episode 11Million Dollar MaybeAired January 31, 2010
Homer blows off Marge to buy a lottery ticket and winds up winning the million-dollar jackpot. Fearing how Marge will react if she finds out the reason Homer missed their date, Homer keeps his newly inherited fortune a secret and spoils his family with “anonymous” gifts. When Bart finds out, he and Homer spend the money like it’s going out of style, including buying front-row to tickets to see Coldplay in concert.
- 23m
- Directed by Mike B. Anderson and Chris Clements
- Written by Bill Odenkirk
Guest stars
- Chris Martin Chris Martin (voice)
- Marcia Wallace Edna Krabappel (voice)
Episode 12Boy Meets CurlAired February 14, 2010
Homer takes Marge out for a romantic evening of ice skating and hand-holding, but upon entering the rink, they encounter a curling team practising. Marge and Homer take to the ice and discover their love for the sport, and soon after, join the curling team and compete with them in the Olympic trials. Team Springfield claims the win and moves on to the 2010 Vancouver Games where Bob Costas covers the action. Meanwhile, sleazy vendors introduce Lisa to the world of collecting Olympic pins, and before long, Lisa is hopelessly addicted.
- 23m
- Directed by Chuck Sheetz
- Written by Rob LaZebnik
Guest stars
- Bob Costas Bob Costas (voice)
Episode 13The Color YellowAired February 21, 2010
When Miss Hoover asks her students to research their family history, Lisa is horrified to discover that most of her ancestors were bad people – a motley crew of horse thieves and deadbeats. But while rummaging through the attic, Lisa happens upon a diary kept by her ancestor, Eliza Simpson. As Eliza’s story unfolds, Lisa learns that her family was part of the Underground Railroad, a group that helped slaves escape to freedom. Eliza recounts liberating a slave named Virgil, but when Lisa presents her findings at school, some of her classmates refute it, leaving Lisa determined to exonerate her family’s name.
- 23m
- Directed by Raymond S. Persi
- Written by Ian Maxtone-Graham and Billy Kimball
Guest stars
- Wren T. Brown Virgil (voice)
- Maggie Roswell Miss Hoover (voice)
- Pamela Hayden Milhouse Van Houten / Milford Van Houten (voice)
- Tress MacNeille Martha the Librarian (voice)
- Karl Wiedergott Interviewer (voice)
Episode 14Postcards from the WedgeAired March 14, 2010
When Bart fails to turn in his homework, Mrs. Krabappel sends a letter home about Bart's behaviour. Despite Bart's best efforts to intercept it, Homer reads the letter, and he and Marge visit Principal Skinner for a parent-teacher conference. Furious, Homer punishes him, but Marge takes a more sympathetic approach. When Bart realizes he can pit Homer and Marge against each other to his benefit, his scheming reaches new heights.
- 23m
- Directed by Mark Kirkland
- Written by Brian Kelley
Guest stars
- Marcia Wallace Edna Krabappel (voice)
Episode 15Stealing First BaseAired March 21, 2010
Principal Skinner announces that Mrs. Krabappel was called out of town and budget cuts dictate that, until she returns, the school's two fourth grade classes will merge. Bart reluctantly shares a desk with Nikki and develops a flirtatious rapport. Bart talks to Grampa about his new crush, and at Grampa's suggestion, gives Nikki a kiss. But when Nikki starts sending Bart mixed signals, he swears off women forever. Meanwhile, Lisa's classmates ostracize her for being an overachiever, and First Lady Michelle Obama, a self-professed nerd, comes to Lisa's defence.
- 22m
- Directed by Steven Dean Moore
- Written by John Frink
Guest stars
- Angela Bassett Michelle Obama (voice)
- Sarah Silverman Nikki McKenna (voice)
Episode 16The Greatest Story Ever D'ohedAired March 28, 2010
The Simpsons family vacation in Israel with Ned Flanders, but Homer does not appreciate any of the culture—until an Israeli tour guide named Jakob shows him around and, in a severe state of dehydration, Homer believes he is the Messiah.
- 23m
- Directed by Michael Polcino
- Written by Kevin Curran
Guest stars
- Sacha Baron Cohen Jakob (voice)
- Yaël Naïm Doreet (voice)
Episode 17American History X-cellentAired April 11, 2010
When the police are called to diffuse a rowdy crowd at Mr. Burns' estate, one of the officers recognizes priceless stolen paintings on the walls, and the maniacal billionaire is taken downtown for questioning. With Mr. Burns gone, Smithers takes charge of the power plant. But when employees take advantage of his good nature, he exacts revenge by forcing the employees to work night and day. These unfair working conditions prompt Homer and his crew to devise a plan to bust out Mr. Burns.
- 22m
- Directed by Bob Anderson
- Written by Michael Price
Guest stars
- Joe Mantegna Fat Tony (voice)
- Pamela Hayden Milhouse Van Houten (voice)
- Kevin Michael Richardson Burns' Cellmate (voice)
- Tress MacNeille Additional Voices (voice)
- Karl Wiedergott Prisoners / Burns' First Cellmate (voice)
Episode 18Chief of HeartsAired April 18, 2010
Homer is completing his court-ordered community service when he befriends his supervisor, Chief Wiggum, by offering him one of his sandwiches. Touched by the act of kindness, Wiggum assigns the other convicts unpleasant tasks, but allows Homer to join him at the picnic table. They continue to grow close, but when the Chief gets injured during a botched bank robbery, Homer doesn't come through when Wiggum needs him the most. Meanwhile, Bart becomes addicted to Battle Ball, a Japanese game made up of plastic balls and magnetic cards, and his family and teachers try to help him kick the habit.
- 22m
- Directed by Chris Clements
- Written by Carolyn Omine
Guest stars
- Jane Kaczmarek Constance Harm (voice)
- Russi Taylor Martin Prince (voice)
- Joe Mantegna Fat Tony (voice)
- Maurice LaMarche Starsky / Hutch (voice)
- Pamela Hayden 'He's got a gun!' / Milhouse Van Houten / Sarah Wiggum (voice)
- Tress MacNeille Cookie Kwan / Sassy Black Woman / Pigs (voice)
- Karl Wiedergott Legs (voice)
Episode 19The Squirt and the WhaleAired April 25, 2010
The Simpsons decide to embrace a cheaper, alternate source of energy by erecting a wind turbine in their backyard. But when Homer realizes some of the power is being directed to the local electric company, he decides to remove his home from the grid and becomes completely dependent upon an unreliable source of power. Meanwhile, a storm erupts, trapping a magnificent 150-foot-long blue whale ashore, and Lisa and Homer attempt to help the poor creature.
- 22m
- Directed by Mark Kirkland
- Written by Matt Warburton
Episode 20To Surveil with LoveAired May 2, 2010
A bomb squad mistakenly blows up Homer's unattended gym bag, releasing radiation into the city and authorities react by suspending civil liberties. Wiggum and his men install surveillance cameras around Springfield and round up suspected terrorists, including groundskeeper Willie, but when monitoring the nonstop flow of video imagery proves to be too much, Wiggum enlists concerned citizens to help keep the city safe. Meanwhile, Lisa becomes fed up with being blonde, so she dyes her hair a dark color.
- 22m
- Directed by Lance Kramer
- Written by Michael Nobori
Guest stars
- Marcia Wallace Edna Krabappel (voice)
- Suzy Eddie Izzard Queen Elizabeth II / Prince Charles (voice)
Episode 21Moe Letter BluesAired May 9, 2010
As Mother's Day approaches, Moe narrates an episode in which he writes a letter to Homer, Apu and Reverend Lovejoy, who are vacationing with their children, and threatens to run away with one of their wives. While the trio tries to determine whose wife Moe is referring to, Homer, Lovejoy and Apu flashback to the intimate moments they initially ignored between Moe and Marge, Manjula and Helen Lovejoy. But when the boys return from their trip, they're in for the surprise of their lives.
- 22m
- Directed by Matthew Nastuk
- Written by Stephanie Gillis
Guest stars
- Don Pardo Don Pardo (voice)
Episode 22The Bob Next DoorAired May 16, 2010
Bart becomes convinced that his new neighbor, Walt, is his archenemy, Sideshow Bob, disguised and back for revenge. But when Marge tries to convince Bart otherwise by taking him to visit the state penitentiary, a disturbing truth is revealed.
- 22m
- Directed by Nancy Kruse
- Written by John Frink
Guest stars
- Kelsey Grammer Sideshow Bob (voice)
- Pamela Hayden Milhouse (voice)
Episode 23Judge Me TenderAired May 23, 2010
When Moe discovers a hidden talent for judging contests, he is approached by a television agent to join the AMERICAN IDOL judges' panel. Moe flies to Los Angeles where he tours the Fox lot and receives some sage career advice. Meanwhile, Homer drives Marge crazy when he begins hanging around the house.
- 22m
- Directed by Steven Dean Moore
- Written by Allen Glazier and Dan Greaney
Guest stars
- Ellen DeGeneres Ellen DeGeneres (voice)
- Simon Cowell Simon Cowell (voice)
- Rupert Murdoch Rupert Murdoch (voice)
- Randy Jackson Randy Jackson (voice)
- Ryan Seacrest Ryan Seacrest (voice)