Episode list

After a debate among Republican candidates for President, Alec Baldwin becomes SNL's most frequent host with walk-on assistance from Steve Martin and Seth Rogan. In addition to being Rick Perry, Baldwin plays a homey Buffalo newscaster, a child psychologist with a problematic daughter, Tony Bennett giving movie reviews on "Weekend Update," and a contestant on a gay-themed TV game show, "Who's On Top?" The rest of the cast is virtually unchanged from Season 36. We attend the final cast party of "All My Children." Radiohead performs.

After opening the show as a beaver-toothed Merrill Sister in a Lawrence Welk send-up, Melissa McCarthy hosts, dances (sort of), and plays roles as a woman hit on by a Lothario at a bar, a love-struck office worker, a 30's Mae West clone, and an approval-seeking woman testing new products for Hidden Valley Ranch. Jay Pharoah riffs as Chris Rock performing in Broadway favorites, and Kenan Thompson channels Tyler Perry on Weekend Update. Lady Antebellum performs. In a faux commercial, Lil Poundcake dolls deliver HPV vaccines.

After Mitt Romney and Chris Christie (Sudeikis and Moynihan) alternately bore and entertain the press, Ben Stiller hosts: he's in a sketch about Jewish food, stars who can do action flicks as well as musical comedy, a guy who wears the ultimate V-neck tee shirt, a boss at an office party smitten by a flatulent coworker, Bruce Springsteen, and, Derek Zoolander, Stefano's date on Weekend Update. "Fox and Friends" takes on Hank Williams Jr. Throughout, Lincoln Financial Group commercials introduce people to their future selves. Foster the People sings; Hugh Jackman and Kenny G drop by.

After Mayor Bloomberg (Armesin) assures Wall Street protesters that they are welcome in New York City, Anna Faris hosts. She's also a femme-fatale decoy on the Manuel Ortiz show, takes part in a game show "What's Wrong with Tanya," appears on a Michigan State University TV show of faux Japanese pop pundits, joins a Ronette-style girl group singing advice about boys to one of their friends, and introduces her childlike Elizabethan-clothed boyfriend to her family. Republican presidential candidates debate on Mariott Hotels' in-house network. Drake performs and is also featured in an SNL digital short, "Short Interviews with Drake."

After words to the wise from Muammar Gaddafi's ghost, Charlie Day hosts, plays mediocre piano, and appears in sketches as Freakasaurus on Cee Lo Green's show, a reluctant audience member on Dr. Oz, Dionysus in a Mount Olympus parlay to sort out the Greek debt crisis, a comedian with a catchphrase, an actor working with a dolphin, and Colombo. Rick Perry explains himself on "Weekend Update," and Maroon 5 performs.

After a Republican presidential debate featuring Rick Perry's memory lapse, Emma Stone hosts: chatting with Spiderman, then playing a dim Miss American on "Missing Word," a concerned condo resident interviewed by a dismissive aged reporter, and a ham-fisted guest at a bridal shower. She's also a hip youth dancing in a French café and plays suggestive games with technological gadgets. Coldplay performs, and Chris Martin joins Garth and Kat to sing a Thanksgiving song on Weekend Update.

After Mitt Romney (Sudeikis) appears uncensored, Jason Segel hosts: joined by the Muppets for the opening, then playing Antonio Banderas auditioning to replace Regis, a husband in a mattress commercial, the new boyfriend meeting the kissing family, the drunk and dramatic employee at a retirement dinner, the lead singer for Men in Vests (wearing nothing else), Andre the Giant at an ice cream shop, and the keyboardist for The Blue Jean Committee, a hot Worcester band. Jon Huntsman and Kermit join "Weekend Update," plus a commercial for Red Flag perfume and a digital short on seducing women with chess. Florence and the Machine perform.

After President Obama explains who is more powerful than he, Steve Buscemi hosts: he advises second bananas on landing leading roles, appears as a Burning Man pal on the Miley Cyrus Show, tries to surprise a co-worker, plays a coach accused of molesting youths, helps decorate a Christmas tree with the clueless Sheila, gets constipation advice from a fellow musician, plays a murderer interviewed by Keith Morrison on "Dateline," and appears as Jim Gordon constantly importuned by Batman. Herman Cain explains himself on "Weekend Update." The Black Keys perform "Lonely Boy" and "Gold on the Ceiling."

After Greta Van Susteren interviews Donald Trump, Katy Perry hosts. She's an MSNBC commentator on Al Sharpton's show, Florence Welch in a promo for a dog film's soundtrack, Duchess Catherine's raucous sister Pippa having a chat with the Queen, Christina Aguilera in a promo for "The Apocalypse", and a Hello Kitty aficionado on MSU's campus parody of Japanese pop. She also sings about best friends, chats with Kalle, an eerie and robotic Finnish talk show host, and finds her soul mate at a bar while a jazz trio plays. On "Weekend Update," an American Airlines pilot apologizes to Alec Baldwin. Cameos by Matt Damon, Val Kilmer, Darrell Hammond, and Alec Baldwin. Robyn performs.

Jimmy Fallon hosts the Christmas show, playing an adult trying to crash a dance at his old high school, a retired Regis dropping in on Hoda and Kathy Lee, Russell Brand and then Justin Bieber singing Christmas duets with Michael Bublé, getting advice from his mirror image as he prepares to host SNL, the reluctantly-dancing host at a 1928 Manhattan cocktail party, the keyboardist in a quartet of SNL alums ("I Wish It Was Christmas Today"), and the horse on Broadway's "War Horse." Jude Law impersonates Justin Timberlake on "Weekend Update," Michael Bublé sings, Tommy Palmese does his off-Broadway show, and Jesus visits Tim Tebow and the Broncos in the locker room.

"Rick Santorum'' in Prez campaign. Barkley is Shaq on "Inside the NBA," hosts "White People Problems", pitches "Post Game Translator" of athlete comments, portrays Dong Corleone in Adult Video Awards. Commercial lists Chantix side effects.

"Mitt Romney" shows he's a regular guy at a diner. Ten years after graduation, Harry Potter hangs at Hogwarts to impress new students. Candidate for mayor runs attack ads against herself. Casey Anthony's dog interviewed on Weekend Update.

America's premier sketch-comedy show returns for its 37th season LIVE from Studio 8H in New York City. This season, the cast includes Fred Armisen, Abby Elliott, Bill Hader, Seth Meyers, Bobby Moynihan, Nasim Pedrad, Andy Samberg, Jason Sudeikis, Kenan Thompson, Kristen Wiig, featuring Vanessa Bayer, Paul Brittain, Taran Killam, and Jay Pharoah. Check out these selected sketches and segments from each of this season's episodes, so you can make every night a Saturday Night.

America's premier sketch-comedy show returns for its 37th season LIVE from Studio 8H in New York City. This season, the cast includes Fred Armisen, Abby Elliott, Bill Hader, Seth Meyers, Bobby Moynihan, Nasim Pedrad, Andy Samberg, Jason Sudeikis, Kenan Thompson, Kristen Wiig, featuring Vanessa Bayer, Paul Brittain, Taran Killam, and Jay Pharoah. Check out these selected sketches and segments from each of this season's episodes, so you can make every night a Saturday Night.

America's premier sketch-comedy show returns for its 37th season LIVE from Studio 8H in New York City. This season, the cast includes Fred Armisen, Abby Elliott, Bill Hader, Seth Meyers, Bobby Moynihan, Nasim Pedrad, Andy Samberg, Jason Sudeikis, Kenan Thompson, Kristen Wiig, featuring Vanessa Bayer, Paul Brittain, Taran Killam, and Jay Pharoah. Check out these selected sketches and segments from each of this season's episodes, so you can make every night a Saturday Night.

America's premier sketch-comedy show returns for its 37th season LIVE from Studio 8H in New York City. This season, the cast includes Fred Armisen, Abby Elliott, Bill Hader, Seth Meyers, Bobby Moynihan, Nasim Pedrad, Andy Samberg, Jason Sudeikis, Kenan Thompson, Kristen Wiig, featuring Vanessa Bayer, Taran Killam, and Jay Pharoah. Check out these selected sketches and segments from each of this season's episodes, so you can make every night a Saturday Night.

America's premier sketch-comedy show returns for its 37th season LIVE from Studio 8H in New York City. This season, the cast includes Fred Armisen, Abby Elliott, Bill Hader, Seth Meyers, Bobby Moynihan, Nasim Pedrad, Andy Samberg, Jason Sudeikis, Kenan Thompson, Kristen Wiig, featuring Vanessa Bayer, Taran Killam, Kate McKinnon, and Jay Pharoah. Check out these selected sketches and segments from each of this season's episodes, so you can make every night a Saturday Night.

America's premier sketch-comedy show returns for its 37th season LIVE from Studio 8H in New York City. This season, the cast includes Fred Armisen, Abby Elliott, Bill Hader, Seth Meyers, Bobby Moynihan, Nasim Pedrad, Andy Samberg, Jason Sudeikis, Kenan Thompson, Kristen Wiig, featuring Vanessa Bayer, Taran Killam, Kate McKinnon, and Jay Pharoah. Check out these selected sketches and segments from each of this season's episodes, so you can make every night a Saturday Night.

America's premier sketch-comedy show returns for its 37th season LIVE from Studio 8H in New York City. This season, the cast includes Fred Armisen, Abby Elliott, Bill Hader, Seth Meyers, Bobby Moynihan, Nasim Pedrad, Andy Samberg, Jason Sudeikis, Kenan Thompson, Kristen Wiig, featuring Vanessa Bayer, Taran Killam, Kate McKinnon, and Jay Pharoah. Check out these selected sketches and segments from each of this season's episodes, so you can make every night a Saturday Night.

America's premier sketch-comedy show returns for its 37th season LIVE from Studio 8H in New York City. This season, the cast includes Fred Armisen, Abby Elliott, Bill Hader, Seth Meyers, Bobby Moynihan, Nasim Pedrad, Andy Samberg, Jason Sudeikis, Kenan Thompson, Kristen Wiig, featuring Vanessa Bayer, Taran Killam, Kate McKinnon, and Jay Pharoah. Check out these selected sketches and segments from each of this season's episodes, so you can make every night a Saturday Night.

Lawrence Welk takes us to Italy where Johnny Prosciutto sings to the Merril sisters from the Finger Lakes. Mick Jagger hosts: he plays a movie action hero who discloses his real personality on a game show, a London economist speaking for J.P. Morgan in an interview with Al Sharpton, an insurance agent reluctant to sing karaoke, a dad on a soap opera, Steven Tyler as a TV host and a pitchman, and an M.C. at graduation. The digital short is "Lazy Sunday 2." Jagger sings with Arcade Fire, the Foo Fighters, and Jeff Beck. Cameos are plentiful, and the spotlight is on Kristen Wiig in her final appearance as a regular cast member.