Patton Oswalt / Hannah New

Angela Kinsey / David Feherty

Jay Leno / Cameron Esposito

Elijah Wood / Brie Larson

Vin Diesel / Sara Gilbert

Thomas Lennon / The Wild Feathers

Alice Eve / Shirley Jones

Anna Faris / Jean-Michel Cousteau

Max Greenfield / Amy Smart

Craig welcomes actor Max Greenfield and actress Amy Smart.

Adam Goldberg / Jennifer Carpenter

Craig welcomes actor Adam Goldberg and actress Jennifer Carpenter.

Seth Green / Andi Osho / Johnnyswim

Dianna Agron / Joel Stein

Queen Latifah / John Lloyd / Laura Mvula

Megan Mullally / Tommy Lasorda

Connie Britton / Aimee Garcia

Neil Patrick Harris

Craig welcomes actor Neil Patrick Harris.

Jesse Tyler Ferguson / Taylor Schilling

Ray Romano / Carl Edwards

Craig welcomes actor Ray Romano and NASCAR driver Carl Edwards.

Julia Stiles / Keke Palmer

Joseph Gordon-Levitt / Maggie Grace

Julia Louis-Dreyfus / Phil Palisoul

Simon Helberg / The Naked and Famous

Craig welcomes actor Simon Helberg. The Naked and Famous perform "Hearts Like Ours".

Patricia Heaton / Dennis Lehane

Ben Stein / Jayma Mays

Diane Kruger / Ken Jeong

Justin Long / Dave Stone

Zooey Deschanel / Ed Weeks

Sarah Michelle Gellar / Guillermo Díaz

Sean Hayes / Tom Cotter

Steven Wright / Ginnifer Goodwin

Rashida Jones / Brian McKim

Malin Akerman / Jo Nesbø / Vintage Trouble

Michael C. Hall / Laura Bell Bundy

Craig welcomes actor Michael C. Hall and actress Laura Bell Bundy.

Robin Williams

Allison Janney / Ben Schwartz

Rosie Perez / Nick Cobb

Craig welcomes actress Rosie Perez, comedian Nick Cobb performs stand-up.

Katey Sagal / Richard Curtis

Alyssa Milano / Lawrence Block

Drew Carey / Pamela Silva Conde

Craig welcomes comedian Drew Carey and TV host Pamela Silva Conde (credited as Pamela Silva).

Ben Kingsley / Anne Rice

Geoffrey Rush / Dale Earnhardt Jr. Jr.

Lauren Graham / Eugenio Derbez

Kevin Kline / Jenna Dewan

Craig welcomes actor Kevin Kline and actress Jenna Dewan.

Martin Short / Doris Kearns Goodwin

Craig welcomes comedian Martin Short and author Doris Kearns Goodwin.

Kat Dennings / Markus Persson

Craig welcomes actress Kat Dennings and videogame creator Markus "Notch" Persson.

Mary Steenburgen / Becca Tobin

Craig welcomes actresses Mary Steenburgen and Becca Tobin. William Shatner stops by for a fireside chat.

LL Cool J / Carrie Keagan

Ron Perlman / Lupita Nyong'o

Kaley Cuoco / Kellie Pickler

Elisabeth Moss; Tom Felton.

Donald Sutherland / Casey Wilson

Steven Yeun / Summer Glau

Craig welcomes actor Steven Yeun and actress Summer Glau.

Kunal Nayyar

Margaret Cho / Elettra Rossellini Wiedemann

Nikki Reed / Joe Zimmerman

David Arquette / Krysten Ritter

Tim Meadows / Helen Fielding

Craig welcomes comedian Tim Meadows and author Helen Fielding.

Mark Harmon / Wolfgang Puck

Angela Kinsey / American Authors

Betty White / Evangeline Lilly / Josh Blue

Will Arnett / Pau Gasol

Aisha Tyler / Bruce McCall

Anjelica Huston / Jackie Guerrido

Michael Ian Black / Chris Hardwick / Marc Maron / Zoe Saldana / Mitch Albom

Demi Lovato / Louie Anderson

Paul Giamatti / Candice Accola

Craig welcomes actor Paul Giamatti and actress Candice Accola.

Jim Gaffigan / Ariel Tweto

Craig welcomes comedian Jim Gaffigan and reality-TV star Ariel Tweto.

Jason Schwartzman / Alexis Knapp

Michael Sheen / The Lone Bellow

Joe Theismann / Kelly Rowland

Alyssa Milano / Wilford Brimley

Natasha Lyonne / Michael Connelly / Kellie Pickler

Cuba Gooding Jr. / Emily Wickersham

Judd Apatow / Lissie

Craig welcomes writer Judd Apatow, Lissie performs "Shameless".

Kathy Griffin / Haley Joel Osment

Don Cheadle / Ivana Miličević / Jake Bugg

Mark Wahlberg / Michaela Conlin

Craig welcomes actor Mark Wahlberg and actress Michaela Conlin.

Bob Saget / Jane Levy

Craig welcomes comedian Bob Saget and actress Jane Levy.

Kevin Bacon / Karla Souza

Aaron Eckhart / Lynette Rice

Tig Notaro / Julie Delpy

Craig welcomes comedienne Tig Notaro and writer Julie Delpy.

Kenneth Branagh / Christian Finnegan

Craig welcomes actor Kenneth Branagh. Christian Finnegan performs stand-up.

Chris Pine / Morena Baccarin

Denis Leary

Justin Long / Valerie Azlynn

Michelle Monaghan / Michael Irvin

Martha Plimpton / Sarah Jarosz

Craig welcomes actress Martha Plimpton. Sarah Jarosz performs "Build Me Up From Bones".

Christina Ricci / Ian Rankin

Max Greenfield / ZZ Ward

Craig welcomes actor Max Greenfield, ZZ Ward performs "365 Days".

Hayden Panettiere / Brooke Van Poppelen

Larry King / Henry Cho

Megan Mullally / J. Maarten Troost

Craig welcomes actress Megan Mullally and travel writer J.Maarten Troost.

Jim Parsons

John Goodman / Imogen Poots

Craig welcomes actor John Goodman and actress Imogen Poots.

Tom Lennon / Sarah Paulson

Julie Chen / Bubba Watson

Jason Alexander / Regina Hall

Kurt Russell / Aimee Garcia

Matt LeBlanc / Abbie Cornish

Elizabeth Banks / Chris Voth

Gary Oldman / Ellie Kemper / Roddy Hart and The Lonesome Fire

Ted Danson / Kristen Schaal

Kevin Costner / Krystal Keith / Tony Deyo

Joseph Gordon-Levitt / Lisa Vanderpump

Ken Jeong / Léa Seydoux

Zooey Deschanel / Vera Farmiga / Roddy Hart and The Lonesome Fire

Ashton Kutcher / Roddy Hart and The Lonesome Fire

Alice Eve / Bojana Novakovic / Roddy Hart and The Lonesome Fire

Julia Stiles / Dave Itzkoff / Roddy Hart and The Lonesome Fire

Sarah Chalke / Roddy Hart and The Lonesome Fire

Meredith Vieira / Josh Radnor

Elijah Wood / Keke Palmer / Glasvegas

Carson Kressley / Lena Headey / Panic! at the Disco

Craig welcomes fashion designer Carson Kressley and actress Lena Heady. Panic! at the Disco perform "This Is Gospel".

Rosie Perez / Bryan Kellen

Craig welcomes actress Rosie Perez, Comedian Bryan Kellen performs stand-up.

Aaron Paul / Andi Osho

Emily Mortimer / Darrin Rose / The Alternate Routes

Jeff Goldblum / Lauren Cohan

Craig welcomes actor Jeff Goldblum and actress Lauren Cohan.

Ricky Gervais / Lauren Cohan

Craig welcomes comedian Ricky Gervais and actress Lauren Cohan.

Kristen Bell / Michael McMillian

Craig welcomes actress Kristen Bell and actor Michael McMillian.

Amy Smart / Denise Mina

Craig welcomes actress Amy Smart and author Denise Mina.

Jane Lynch / Salman Rushdie

Lewis Black / Dawn Olivieri

Uma Thurman / DJ Qualls

Betty White / Brett Dalton

Craig welcomes actress Betty White and actor Brett Dalton.

Howie Mandel / Ginger Gonzaga / The Belle Brigade

Scarlett Johansson / Maz Jobrani

Carl Reiner / Connie Schultz / Joan Jett & The Blackhearts

Cat Deeley / Gina Carano

Jon Hamm / Pam Dawber

Sharon Osbourne / Tony Kanaan

Morgan Freeman / Adam Ray

Wanda Sykes / Malin Akerman

Dominic Monaghan / Brooklyn Decker

Wendie Malick / Jim Rash

Kunal Nayyar / Tom Segura

Kevin Bacon / Andy Hendrickson

William Shatner / Jaime Pressly

George Lopez / Ari Graynor

Cedric the Entertainer / Billie Piper

Craig welcomes actor Cedric the Entertainer and actress Billie Piper.

Eddie Izzard / Lyle Lovett

Emily Deschanel / Zoe Lister-Jones

Billy Bob Thornton / St. Paul & the Broken Bones

Candice Accola / LL Cool J

Valerie Bertinelli / Seth Gabel

Jim Gaffigan

Craig welcomes comedian Jim Gaffigan.

Cheryl Hines / Rampage Jackson

Craig welcomes actress Cheryl Hines and MMA fighter Quinton "Rampage" Jackson.

Christiane Amanpour / Rachael Taylor

Elisabeth Moss / Tom Felton

Craig welcomes actress Elisabeth Moss and actor Tom Felton.

Colin Hanks / Richard Ayoade

Craig welcomes actors Colin Hanks and Richard Ayoade.

Patton Oswalt / Megan Boone

Lisa Kudrow

Eugenio Derbez / Elizabeth Henstridge / A Great Big World

Angela Kinsey / Samantha Shannon

Craig welcomes actress Angela Kinsey and author Samantha Shannon.

Billy Gardell / Lennon Parham / James Galea

Carrie Ann Inaba / Anthony Horowitz

Jenna Elfman / Bianca Kajlich

Sophia Bush / Jackie Collins

Craig welcomes actress Sophia Bush and author Jackie Collins.

Regis Philbin / Jamestown Revival

Terry Bradshaw / Jessica McNamee

Jeff Foxworthy / The Colourist

Tom Lennon / Bob Oschack / 2Cellos

Jon Favreau / Carrie Keagan

Shailene Woodley / Dan Boulger / Wild Child

Betty White / Richard Quest / Jamestown Revival

America Ferrera / Honeysuckle Weeks

Hugh Laurie

Craig welcomes actor Hugh Laurie, who also performs "Wild Honey".

William Shatner / Jessica St. Clair

Bob Newhart / Constance Zimmer

Amanda Peet / Kit Harington

Susan Sarandon / Garrison Keillor

John Waters / Yunjin Kim

Ricky Gervais / Keb' Mo'

Craig welcomes comedian Ricky Gervais, Keb' Mo' performs "The Worst Is Yet To Come".

Bob Saget / Ashley Madekwe

Megan Mullally / T.J. Miller

Jay Baruchel / Regina Hall

Michelle Monaghan / Greg Proops

Max Greenfield / Ben & Ellen Harper

Henry Winkler / Lennon Parham

Simon Helberg / LP

Noah Wyle / Abigail Spencer

Carson Kressley / Shantel VanSanten

Maria Bello / Bradley Trevor Greive

Kathy Bates / Joel Stein

David Sedaris / Mindy Rickles

Alfred Molina / Moon Bloodgood

Jane Lynch / Keke Palmer

Craig welcomes actresses Jane Lynch and Keke Palmer.

Ice-T / Mackenzie Davis / Body Count

Kathy Griffin / Ingrid Michaelson

Tim Meadows

Michael Sheen

Craig welcomes actor Michael Sheen.

Carl Reiner / Valerie Azlynn

Margaret Cho / Zachary Levi

Nicole Richie / Mark Forward

Craig welcomes fashion designer Nicole Richie, Mark Forward performs stand-up.

Elijah Wood / Marcia Clark / Kristeen Young

Julia Ormond / Dan Riskin

Aisha Tyler / Nat Faxon

Octavia Spencer / Brad Goreski

Craig welcomes actress Octavia Spencer and actor Brad Goreski.

Regis Philbin / Irina Shayk / Switchfoot

Larry King

David Duchovny / Gloria Estefan

Bradley Cooper / Lisa Joyce

Olivia Williams / Josh Wolf

Simon Pegg / Jamie Chung

Dana Carvey / Brit Marling

Jesse Tyler Ferguson / Jón Gnarr

Cat Deeley / Marcia Clark

Guy Pearce / Andi Osho

Diane Kruger / Brad Trackman

Kelsey Grammer / Sloane Crosley

Breckin Meyer / Morena Baccarin

Daniel Radcliffe / Cathy Ladman