List of guest stars on Sesame Street

Carl Banks one special: Banks, a New York Giants player, appears during the celebrity performance of "Put Down the Duckie" in Put Down the Duckie: The Sesame Street Special.

Tyra Banks acted out the word "struggle" and sang the alphabet song with Abby Cadabby. (Note:This video was posted on YouTube, following the season finale.)

Tiki Barber defined "quest" and helped sing "Set Your Piggies Free"

Sara Bareilles

Ray Barretto

Todd Barry

Jason Bateman discusses the word "comfort" with Elmo

Batman

David Beckham acted out the word "persistent" with Elmo

Daniel Bedingfield

Natasha Bedingfield

Samantha Bee

Dalila Bela

Harry Belafonte

Joshua Bell

Kristen Bell defines the word "splatter" with Elmo and Abby Cadabby

Richard Belzer both appeared on the show and they have a puppet that strongly resembles him

Miri Ben-Ari

Annette Bening

Tony Bennett sings alphabet song

George Benson

Candice Bergen lip-synced "C is for cookie"

Corbin Bernsen

Halle Berry presenting the word "nibble" with Elmo

Beyoncé

Jello Biafra

Justin Bieber as a Muppet; sings "Measure" (Never Say Never) with Elmo in a recording studio

Jason Biggs

Aloe Blacc

Jack Black discusses "octagon" and "disguise" with Elmo

Tempestt Bledsoe

Dan Blocker

Emily Blunt as Arizona Emily defines the word "explore" with Idaho Elmo

James Blunt (singing about triangles in episode 4144)

Andrea Bocelli singing a lullaby to Elmo based on the song "Time to Say Goodbye"

Lisa Bonet

Victor Borge

Julie Bowen discusses "binoculars" with Elmo

Wayne Brady sings about "between"

Zach Braff discusses "anxious" with Telly

Benjamin Bratt demonstrates "translate" with Elmo

Drew Brees discusses the word "measure" with Elmo

Amy Brenneman

Albert Brooks

Garth Brooks

Alton Brown explains "recipe" with Abby Cadabby

Blair Brown

Chris Brown explains the word "disappear"; and sings with Elmo about seeing the signs. (Note: Episode with Brown singing with Elmo was pulled from broadcast due to Brown's recent arrest.)

Downtown Julie Brown

Kobe Bryant explaining the word "miniature" with Abby Cadabby

Michael Bublé

Buck 65, one segment: The Canadian hip-hop artist performed a song called the 'Grocery Store Rap' on the show. [1]

Jimmy Buffett

Carol Burnett

Ty Burrell discusses "hexagon" with Abby Cadabby; and shows Elmo "hide and seek"

LeVar Burton

Barbara Bush

Laura Bush one segment: In episode 4032, the First Lady reads an original book called Wubba Wubba Wubba to Elmo, Big Bird, and some children. Bush has also appeared on international adaptation of the series Alam Simsim in Egypt and Galli Galli Sim Sim in India.

Reggie Bush discussed the word "appetite" in Music Magic.

Kerry Butler

Eugene Byrd

C-3PO explains to R2D2 that the thing he is in love with is a fire hydrant in episode 1396. "It is better to have loved a fire hydrant than never to have loved at all." (This was their second appearance; the first was in episode 1364.)

John Candy appeared in the Put Down the Duckie special, 1988.

Mary Chapin Carpenter

Steve Carell demonstrates the word "vote" with Elmo and Abby Cadabby

José Carreras

Jim Carrey

Aaron and Nick Carter teach Elmo about siblings

Vince Carter

Nancy Cartwright (as Bart Simpson)

Johnny Cash singing "Nasty Dan" with Oscar

Dan Castellaneta (as Homer Simpson)

Phoebe Cates

Kim Cattrall defines the word "fabulous" for Abby Cadabby in episode 4162

Henry Cavill defines the word "respect" with Elmo

Cedric the Entertainer demonstrates the word "canteen" with Abby Cadabby

Carol Channing

Stockard Channing

Tracy Chapman

Ray Charles sings alphabet song

Don Cheadle demonstrates "inflate" with Elmo

Kristin Chenoweth

Cher

Julia Child

Kelly Clarkson

John Cho defines "sturdy" with Abby Cadabby

Owl City

Tom Cochrane

Andy Cohen describes the word "popular" with Elmo

Stephen Colbert as the letter Z in Sesame Street's All Star Alphabet

Laveranues Coles one segment: Coles, a New York Jets player, appears during in season 38 (2007), along with other Jets, Elmo, and Elmo's goldfish Dorothy.

Judy Collins

Phil Collins

Shawn Colvin sings "I Don't Want to Live on the Moon" with Ernie.

Perry Como

Common

Harry Connick Jr.

Tim Conway

Anderson Cooper appeared on GNN to discuss the letter G

Angel Corella

Terry Crews demonstrates the word "artist" with Abby Cadabby and Count von Count

Penelope Cruz

Ann Curry defines the word "apology" in episode 4151

Tim Curry

Dance Theatre of Harlem

Claire Danes demonstrates the word "diagram" with Cookie Monster

Thom Davies

Viola Davis defines the word "fiesta" with Elmo

Dominique Dawes

Richard Dawson appeared as host of "Family Food", a takeoff on his Family Feud game show

Ellen DeGeneres sings alphabet song and talks about the word "ballet"

Robert De Niro explains what an 'actor' is to Elmo; he turns into a dog, a cabbage, and Elmo.

Danny DeVito

The Deadly Nightshade

Ruby Dee

Kat Dennings defines the word "repair" with Abby Cadabby

Destiny's Child sings "A New Way to Walk"

Cameron Diaz defines the word "tree" with Grover, explains "habitat" with the help of the Muppet animals, and sings along in "Set Your Piggies Free"

Kara DioGuardi defines "pasta" with Elmo

Celine Dion

The Dixie Chicks sing about the letter B

Robert Downey, Jr.

Gustavo Dudamel demonstrates "stupendous" with Elmo

Jenna Elfman

Roger Ebert

Zac Efron defines the word "patience" with Elmo

Josh Elliott

Eminem

En Vogue

Julius Erving

Darren Espanto

Giancarlo Esposito portrayed Mickey, Big Bird's camp counselor in episodes 1706-1710

Anna Faris talks about "gems" with Elmo and Prince

Colin Farrell talks about the word "investigate" with Elmo and Murray

Suzanne Farrell

Lorna and Lorena Feijóo dance with Zoe in episode 4162

Leslie Feist sang an adaptation of her hit song "1234"

José Feliciano

Fergie

Craig Ferguson demonstrates the word "experiment" with the help of Elmo and some chickens

Jesse Tyler Ferguson discusses "fragile" with Cookie Monster

José Ferrer

Tina Fey as a "book-aneer" in episode 4137

Arthur Fiedler

Sally Field

Harvey Fierstein

Fifth Harmony

Laurence Fishburne demonstrates on how to brush their teeth with Telly and Rosita

Rascal Flatts

Neil Flynn

Matthew Fox teaching Elmo about bones

Jamie Foxx singing the alphabet with Elmo, a fox named "Jamie Fox", and a duck named "Jaime Fox"

Dennis Franz

Brendan Fraser teaching the word "speedy" with Grover demonstrating it, sings along in "Set Your Piggies Free"

Walt Frazier

Morgan Freeman

Matt Frewer

Judah Friedlander teaching the word "spectacular" with Telly

The Fugees

Sia Furler

Josh Gad demonstrating "texture" with Abby

Johnny Galecki defines "transform" with Abby

Zack Galifianakis defines the word "nimble" with Murray

James Gandolfini addressing being scared of the dark, haircuts, and giant talking vegetables

Billy Gardell defines "cheer" with Elmo and Abby Cadabby

Jennifer Garner explaining the word "galoshes" with Abby Cadabby; demonstrates "stretch" with Elmo

Brad Garrett

Jennie Garth defines the word "garden" with Abby Cadabby

Pau Gasol defines the word "coach" with Abby Cadabby

Crystal Gayle

Sarah Michelle Gellar explaining the word "disappointed"

Filip Geljo

Sarah Geronimo

Ricky Gervais defined "stumble"; helped sing "Set Your Piggies Free"; sang a Celebrity Lullaby to Elmo

Barry Gibb

Charles Gibson defines the word "predicament" in episode 4149

Whoopi Goldberg talked with Elmo about skin color and hair texture.

Jeff Goldblum one episode: Bob's brother Minneapolis who sought for a golden cabbage in Snuffy's cave with Big Bird, Snuffleupagus, and Bob.

The Goo Goo Dolls performed the song "Pride", which is based on their hit single "Slide".

Cuba Gooding Jr. defines the word "angry" in episode 4159

Ginnifer Goodwin defines the word "adventure" with Abby Cadabby

Jeff Gordon as a race car announcer for the Wormy race.

Joseph Gordon-Levitt defines the word "reinforce" with Murray

Gilbert Gottfried

Alexander Gould

Nolan Gould

Ben Graham, one segment: Graham, a New York Jets player, appears during in season 38 (2007), along with other Jets, Elmo, and Elmo's goldfish Dorothy.

Lauren Graham discusses "author" with Grover

Adrian Grenier acted out the word "season" with Elmo.

David Alan Grier

Blake Griffin discusses "champion" with Abby Cadabby

Rachel Griffiths demonstrates "dozen" with Elmo

Ed Grimley

Charles Grodin

Tim Gunn

Jake Gyllenhaal appears with an octopus stuck on his head and teaches the word "separate".

Maggie Gyllenhaal teaches the word "surprise"; did a handstand for "Set Your Piggies Free"

Bill Hader discusses the word "grouchy" with Elmo and Murray

Margaret Hamilton

Jon Hamm defines the word "sculpture" with Elmo

Herbie Hancock showing off the Fairlight Synthesizer

Tom Hanks

Kadeem Hardison

Mariska Hargitay explaining the word "mystery"

The Harlem Globetrotters

Neil Patrick Harris appeared as the "Fairy Shoe Person" and defined the word "curly" with Elmo

Samantha Harris defines "reporter" with Elmo

Jason Harris Katz

Elisabeth Hasselbeck defines the word "camouflage" in episode 4199

Anne Hathaway

Tony Hawk counts the number of wheels on a skateboard

Lena Headey defines the word "relax" with Murray

Max Headroom

Katherine Heigl

Ed Helms demonstrates "grimace" with Elmo

Christina Hendricks demonstrates "technology" with Elmo

Don Henley

Taraji P. Henson

Keith Hernandez appeared in Put Down the Duckie

Tom Hiddleston

Faith Hill sang about sharing with her husband, Tim McGraw

Jonah Hill appeared wearing a fake mustache, which he gave to Elmo; defines the word "empty" with Murray

Gregory Hines and his brother Maurice

Hootie and the Blowfish singing about crossing the street

Lena Horne

Marilyn Horne

Dwight Howard defines the word "strategy" with Elmo

Ron Howard

Terrence Howard

Jennifer Hudson

Sarah Hughes discusses "persistence" with Elmo

Bonnie Hunt

Lillian Hurst

Ice Cube tells Elmo about "astounding" things

Ice-T

Eric Idle

India.Arie sings the ABC's with Elmo

James Ingram

Mark Ingram one special: Ingram, a New York Giants player, appears during the celebrity performance of "Put Down the Duckie" in Put Down the Duckie: The Sesame Street Special.

Jeremy Irons appears during the celebrity performance of "Put Down the Duckie" in Put Down the Duckie: The Sesame Street Special, 1988.

Bill Irwin

Judith Ivey

Hugh Jackman appears with Elmo and teaches the word "concentration"

Bo Jackson

Gordon Jackson

Jesse Jackson one segment: Civil rights activist Jackson recited the free verse poem "I Am - Somebody" to numerous children and adult gathered around him on 123 Sesame Street.

Mahalia Jackson

Michael Jackson

Randy Jackson demonstrates the word "glockenspiel" with a dog

Hailie Jade

Kevin James

Allison Janney

Wyclef Jean

Caitlyn Jenner (then known as Bruce Jenner)

Kylie Jenner

Ken Jennings one segment: Appearing in 2005 for a Healthy Moments segment, Jennings won a date with a pineapple after playing a game with Grover.

Peter Jennings

Waylon Jennings

Ken Jeong discusses "deciduous" with Elmo

Michael Jeter

The New York Jets represented by Chad Pennington, Laveranues Coles, Ben Graham, and head coach Eric Mangini (episode 4147)

Billy Joel sings with Marlee Matlin

Arte Johnson

Nick Jonas

James Earl Jones guest starred in the first season (1969), reciting the alphabet.

Jason Jones

Jughead Jones

Norah Jones sings with Elmo about her friend Y not meeting her; sings "Don't Know Why"

Mindy Kaling discusses "enthusiastic" with Elmo

Carol Kane

Kim Kardashian

Julie Kavner (as Marge Simpson)

Toby Keith

Matt Kemp demonstrates the word "attach" with Abby Cadabby

Anna Kendrick defines "absorb" with Elmo and Abby Cadabby

Alicia Keys

Chaka Khan

Kid 'n Play

Nicole Kidman defines "stubborn" with Oscar the Grouch

Taran Killam

Jimmy Kimmel defines "sibling"

Richard Kind (Playing a Balloon Fairy in episode 4088)

B.B. King

Larry King

Greg Kinnear demonstrating the word "machine"

Reverend Frederick Douglass Kirkpatrick

Kevin Kline

Heidi Klum defines "compliment" with Elmo and a boot

Gladys Knight & the Pips

T.R. Knight - Letter "I" - Private I

Daniel Koren

Jane Krakowski

Diana Krall

John Krasinski defines "soggy" with Murray

Chris Kratt

Martin Kratt

Alison Krauss

Chad Kroeger

Kronos Quartet

Mila Kunis defines "include" with Elmo and two dancing sheep

Christopher Lloyd

Patti LaBelle

Ladysmith Black Mambazo

Nick Lachey

Emeril Lagasse

Lamb Chop sings alphabet song

Burt Lancaster

Sean Landeta one special: Landeta, a New York Giants player, appears during the celebrity performance of "Put Down the Duckie" in Put Down the Duckie: The Sesame Street Special.

Michael Landon

Nathan Lane sings "Sing a Song" with the Oinker Sisters

Matt Lauer explains what he can do with a newspaper in episode 4136, also interviewing Cookie Monster about his decision to eat fruit

Cyndi Lauper

Laurien

Jude Law demonstrating the word "cling"

Spike Lee

John Legend

John Leguizamo taught Elmo about healthy vegetables.

Jay Leno

Zachary Levi defines the word "applause" with Elmo

Shari Lewis

Ed Lipton

Little Richard

LL Cool J sings the song "Addition Expedition" with Elmo; sings about the number 1; defines "unanimous" with Elmo and Abby Cadabby

Rebecca Lobo

Kenny Loggins

Nia Long demonstrates "divide" with Abby Cadabby

Eva Longoria demonstrating the word "exquisite"

George Lopez defines the word "liquid" with Elmo and Abby Cadabby

Mario Lopez appears as a reporter for "Extra" in episode 4305

Los Lobos

Julia Louis-Dreyfus

Nadine Lustre

Kellan Lutz defines the word "vibrate" with Cookie Monster

Loretta Lynn

Evan Lysacek discusses "confidence" with Elmo

Howie Mandel demonstrates "ticklish" in episode 4143

Eric Mangini one segment: Mangini, the New York Jets coach, appears during in season 38 (2007), along with other Jets, Elmo, and Elmo's goldfish Dorothy.

Julianna Margulies as Dr. Berger who helps heal Big Bird's broken wing

Cheech Marin

Ziggy Marley

Bruno Mars singing "Don't Give Up"

Branford Marsalis

Wynton Marsalis

James Marsden defines the word "engineer" with Elmo

Andrea Martin

Steve Martin

J.R. Martinez

Richard Marx

Marlee Matlin sings with Billy Joel

Dave Matthews sings "I Need a Word" with Grover

Jessica Mauboy

John Mayer in a Primetime Special that appears on April 1, 2009

Whitman Mayo

Debi Mazar defining "humongous" in episode 4211

Jack McBrayer

Martina McBride

Jenny McCarthy imitating several sorts of insect

Melissa McCarthy discusses "choreographer" with Elmo

Tim McCarver

Audra McDonald

Bobby McFerrin

Phil McGraw co-hosting with Dr. Feel

Tim McGraw singing about sharing with his wife, Faith Hill

Ewan McGregor

Joel McHale defines "prickly"

Michael McKean Rock, Rock Band (episode 4234, season 41)

Ian McKellen defining "resist", tries to make Cookie Monster resist from eating a cookie.

Don McLean

Wendi McLendon-Covey demonstrates "strenuous" with Elmo

Christopher Meloni

Maine Mendoza

Maria Menounos defines "senses"

Menudo

Idina Menzel

Natalie Merchant

Ethel Merman

Debra Messing defines "nature"

Seth Meyers discusses "greeting" with Count von Count

MF Grimm

Lin-Manuel Miranda as Freddy Flapman in episode 4187

Jay Mohr defines the word "tool" in episode 4308

Janelle Monáe sings "The Power of Yet"

Michelle Monaghan defines "fascinating" with Abby Cadabby

Julianne Moore

Natalie Morales defines the word "float" with Abby Cadabby

John Moschitta, Jr.

Bobby Moynihan appears as Quacker Duck Man in episode 4325

Jason Mraz sings "Outdoors" (to the tune of his hit "I'm Yours") with Sesame Street friends about going outside.

Megan Mullally defines the word "distract"

Ralph Nader appears singing "People in Your Neighborhood" in Put Down the Duckie: The Sesame Street Special, 1988.

Joe Namath

National Theatre of the Deaf

Martina Navratilova

Kunal Nayyar defines "robot" with Grover and a robot.

Ne-Yo

Liam Neeson

Karl Nelson, one special: Nelson, a New York Giants player, appears during the celebrity performance of "Put Down the Duckie" in Put Down the Duckie: The Sesame Street Special.

Lupita Nyong'o and Elmo talk about skin.

*NSYNC

Michelle Obama shows kids how to plant vegetables.

Conan O'Brien one segment, two specials : O'Brien has guested on Sesame Street itself, as well as two special productions. While trying to deliver a tape in the Elmopalooza special, Big Bird runs through the set of Late Night with Conan O'Brien, where he is interviewing the Yip Yips; also seen is Andy Richter. O'Brien appeared in a celebrity montage of "Sing", for 2004 DVD What's the Name of That Song.

Jerry O'Connell demonstrates "observe" with Murray

Nancy O'Dell defines the word "pollinate"

Chris O'Donnell defines the word "activate"

Rosie O'Donnell

Bill O'Reilly

Sandra Oh as a Cookie Fairy (episode 4184).

OK Go

Timothy Olyphant discusses "proud" with Abby Cadabby

One Direction sings "What Makes U Beautiful"

Donny Osmond

Seiji Ozawa

Piolo Pascual

Brad Paisley

Sarah Jessica Parker demonstrates "sighing" and "pair" with Elmo; looks for "big" with Super Grover

Jim Parsons explains the word "arachnid"

Paula Patton defines the word "innovation" with Elmo

Pat Paulsen

Fred Penner sings 'I Had a Rooster' and 'The Cat Came Back' on "Canadian Sesame Street".

Chad Pennington one segment: Pennington, a New York Jets player, appears during in season 38 (2007), along with other Jets, Elmo, and Elmo's goldfish Dorothy.

Ty Pennington

Pentatonix

Itzhak Perlman

Rhea Perlman as the "old woman who lived in a shoe" that landed on Big Bird's nest after a hurricane

Katy Perry appearing in a skit with Elmo parodying her song "Hot n Cold". The skit was intended to air on the actual series, but the producers overturned their decision due to parent's reaction to Perry's revealing wardrobe.

Pharrell

Suzanne Pleshette

Amy Poehler demonstrates "challenge" with Elmo

The Pointer Sisters

Troy Polamalu discusses "fragrance" with Elmo

Ellen Pompeo teaching the word "healthy" with Elmo

John Popper

Natalie Portman plays "Princess and the Elephant" with Elmo; fills in for Alan at Hooper's when he goes on vacation to Hawaii

Prince teaches children how to make up their own songs.

Richard Pryor

Tito Puente

Albert Pujols discusses "athlete" with Grover

Keshia Knight Pulliam

Q

Dennis Quaid

Queen Latifah

Zachary Quinto defines the word "flexible" with Grover

R2-D2

R.E.M. sing the song "Furry, Happy Monsters"

Sally Jessy Raphaël

Ahmad Rashad defines the word "gigantic" in episode 4152

Lou Rawls one segment: Rawls appeared in a segment during the first season, to sing the alphabet. He dismissed the concept of using cue cards for the performance, but reversed such decision when he forgot the order of the letters.

Rachael Ray two segments, one baking pumpernickel bread, one describing the word 'amazing.'

Helen Reddy

Christopher Reeve three segments: Reeve first appeared on the show in the 1980s. He reappeared in 2000 for two segments; in one Reeve says the alphabet with Ernie and Ernie's Rubber Duckie, the other he demonstrates the independent living skills he developed after acquiring a disability in 1995 (quadriplegia).

Paul Reubens two segments: Reubens, as Pee-wee Herman, recited his own version of the alphabet in a 1987 insert. Reubens was also recorded for the celebrity version of Put Down the Duckie.

All American Rejects

Debbie Reynolds

Malvina Reynolds season 4 cast member: A folksinger, songwriter, and political activist, then 73-year-old Reynolds appeared on the show performing songs "This House Is Your House".

Ryan Reynolds as the letter A in "The A Team"

Andy Richter one special: While trying to deliver a tape in the Elmopalooza special, Big Bird runs through the set of Late Night with Conan O'Brien, where Conan is interviewing the Yip Yips; Richter is seen in the background very briefly.

Sally Ride one segment: In January 1984, the year immediately following her historic mission, Ride taped a segment on the series where she talks about how A is for astronaut, while Grungetta visits.

Kelly Ripa unable to find the slip of paper on which she wrote the meaning of "frustrated" in episode 4144.

Tim Robbins two segments, one street scene: Robbins appeared in two 1990 insert segments. In the first, he performs at Prairie Dawn's pageant about the seasons; Robbin's then 5-year-old daughter Eva appeared at the end of the segment. The second, first aired episode 3960, he talks about surprises with Elmo. In a 1997 street scene, Robbins rents a room at the Furry Arms Hotel, which he shares with Muppet animals. Talking to Sesame Street Magazine in 1997, Robbins listed three reasons for appearing on the show: his children, Eva, Jack Henry, and Miles. Robbin's then five-year-old son Miles taped three segments with Baby Bear that appeared throughout the 29th season.

Doris Roberts two appearances in one special: In the introduction to Sesame Street special The Street We Live On, Roberts is one of the celebrities in the "My Favorite Sesame Street Moments" clip. She later appears in a celebrity montage of the song "Dance Myself to Sleep".

Julia Roberts Elmo demonstrates to her how to look scared

Robin

Craig Robinson defines the word "pattern" with Elmo

Jackie Robinson recites the alphabet in season 1.

Smokey Robinson sings "You Really Got a Hold on Me" for the letter "U"

Chris Rock

Adam Rodríguez As Detective (Alphie) Betts, helps Elmo and Abby find the missing R objects stolen by the Letter R

Gina Rodriguez

Rico Rodriguez defines the word "magnify" with Elmo

Seth Rogen defines "embarrassed" with Elmo

Fred Rogers

Al Roker

Ray Romano

Rebecca Romjin defines "accessories" with Abby Cadabby

Linda Ronstadt

Tracee Ellis Ross

Diana Ross sings the song "If You Believe" with Big Bird in 1979.

Emmy Rossum defines the word "focus" with Abby Cadabby

Mike Rowe appears with Oscar the Grouch in a segment parody of Dirty Jobs called "Dirtiest Jobs"

Paul Rudd discusses "brilliant" with Grover

Maya Rudolph demonstrates "brainstorm" with Elmo

Mark Ruffalo defines "empathy" with Murray

Meg Ryan

Amy Ryan defines the word "paleontologist" with Elmo

Taylor Swift

Buffy Sainte-Marie

Pat Sajak

Phyllis Smith

Zoe Saldana defined "transportation" with Elmo

Tony Saletan

Lea Salonga

Andy Samberg

Korina Sanchez

Adam Sandler sings "a song about Elmo" and meets up with Cookie Monster to talk about the word "crunchy"

Romeo Santos

Susan Sarandon sings alphabet song

Diane Sawyer

Liev Schreiber explains "exchange" with Elmo and his wife Naomi Watts and also appeared in Elmo's Got the Moves.

Diane Schuur

Adam Scott defines "awful" with Murray

Sharon, Lois & Bram

Ed Sheeran sings the song "Two Different Worlds"

Jerry Seinfeld

Dax Shepard demonstrates "amplify" with Abby Cadabby

Sherri Shepherd defined "identical"

David Shiner

Martin Short

Vlad Shulga used as a picture on Elmo's house to represent an internet meme.

Paul Simon sings "Me and Julio Down by the Schoolyard"

Gene Simmons

The Simpsons

Eric Singer

Yeardley Smith (as Lisa Simpson)

Cobie Smulders discusses "courteous" with Grover

Brittany Snow defines the word "friend" with Elmo

Sonia Sotomayor defines "career" with Abby Cadabby

Spin Doctors one segment, sang the song "Cooperation" (Two Princes) with Elmo, Zoe and Telly Monster

Squirrel Nut Zippers

Paul Stanley

Gwen Stefani

Isaac Stern

Greg and Steve

Jon Stewart defines "practice" in a taped segment

Patrick Stewart sings alphabet song

Ben Stiller sang "These are the People in Our Neighborhood" with Telly.

Michael Stipe

Emma Stone acts out the word "balance" with Abby Cadabby

Eric Stonestreet demonstrates "remember" with Abby Cadabby

Amar'e Stoudemire defines the word "compare" with Grover

Wanda Sykes defines "journal" with Elmo

T

Take 6

James Taylor

Jason Taylor defining "toss" with Elmo

Tommy Thayer

Charlize Theron defines "jealous" with Abby Cadabby

Lynne Thigpen

Isiah Thomas

Tilly and the Wall

The Tokyo String Quartet

The Wiggles

Marisa Tomei

Lily Tomlin

LaDanian Tomlinson defines the word "celebration" with Elmo

Joe Torre

Robert Townsend

Train sings "Five By"

Donald Trump

Carmen Twillie appeared in the Put Down the Duckie special, 2014

Tracey Ullman

Blair Underwood

Carrie Underwood

Usher defined "volunteer" with Elmo, he also sang "The Alphabet is Moving You" with various muppets, defined "unique" with Bert

Peter Ustinov

V

Luther Vandross

Sofía Vergara demonstrates "baile" with Elmo

Meredith Vieira defined the word "hibernate"

Alice Walker

Bill Walsh

Barbara Walters

Patrick Warburton explains "stuck" with a chicken stuck in his shirt

Malcolm-Jamal Warner

Denzel Washington

Naomi Watts explains "exchange" with Elmo and her husband Liev Schreiber and also appeared in Elmo's Got the Moves.

Rutina Wesley demonstrates the word "plan" with Elmo and Abby Cadabby

Kanye West

Forest Whitaker defines "imagination" with Count von Count

Diamond White

Lillias White season 21-24 cast member, 1 street scene: White appeared from 1989 through 1993 as "Lillian", a regular cast member of the show, winning a Daytime Emmy Award for her performance. During her stint, she also voiced the lead singer of The Squirrelles, a Muppet singing group, consisting of three squirrels. She returned in 2006 as a guest for a season 37 street scene, playing Gabi and Miles' kindergarten teacher Ms. Walsh, in a flashback sequence.

will.i.am sings "What I Am"

Brian Williams demonstrates "squid" in a separately-recorded segment, and also as a guest news-anchor reporting that nobody on Sesame Street is sharing

Jesse Williams defines "furious" with Elmo

Joe Williams

Mara Wilson

Robin Williams seven segments: Williams appeared numerous times in the 1990s and 2000s. In the first, aired in 1992 as episode 2963, Williams uses his shoe to demonstrate what makes something alive. Robin then appeared in a celebrity version of "Monster in the Mirror". Another segment has Robin comparing the similarities and difference between himself and a Muppet robin. In another segment, Williams asks Elmo and the kids whether they would allow a nonsense talking, horned two-headed stranger to play baseball with them. In 2000's episode 3684, Williams talks to Elmo about what you can do with a stick. In 2001's episode 3923, Williams shows off the wonders of feet. The Two Headed Monster shows up to play. In 2012's episode 4280, Williams defines the word "conflict" with The Two Headed Monster.

Vanessa Williams

Venus Williams

Wendy Williams defines the word "veterinarian"

Chandra Wilson defines the word "half" with Murray

Flip Wilson

Mookie Wilson

Owen Wilson

Oprah Winfrey on season 41 premiere, as the voice of 'O' on "The O Show".

Henry Winkler

Lee Ann Womack

Stevie Wonder

B. D. Wong