Tim Meadows, Eliza Doolittle, Myq Kaplan

Carrie Fisher, Matthew Gray Gubler

RZA, Melissa Rauch

Tom Selleck, Daniela Ruah

Michael Clarke Duncan, Laura Prepon

Howie Mandel, Randy Houser

Isaac Mizrahi, Sophia Bush

Adam Goldberg

Hugh Laurie

Kristen Bell, Louie Anderson

Lucy Liu, Kevin Sorbo

Colin Firth

David Duchovny, Dr. Sanjay Gupta

Steven Wright, Sara Paxton

Larry the Cable Guy, 3 Doors Down

Don Cheadle, Andrea Riseborough

Ringo Starr

William Shatner

Daniel Radcliffe, Mark Forward

Rachel Bilson, David Milch

Mark Harmon, Martha Plimpton

Kenneth Branagh

Christina Applegate, Brad Goreski

Lisa Kudrow, \"Weird Al\" Yankovic

Chelsea Handler, Dan Riskin

Carol Burnett, Phil Keoghan

Joss Stone, Dave Stewart

Jon Cryer, Morena Baccarin

Jeffrey Tambor, Amy Smart

Simon Helberg, Margaret Cho

Jayma Mays, Jean Michel Cousteau

Bill Maher, Eloise Mumford

Carson Kressley, Anne Rice

Malin Akerman, Jon Ronson

John Waters, Jennifer Carpenter

Eric Idle, Sarah Paulson

Dr. Mehmet Oz, Carrie Keagan

Tom Lennon, Phil Plait

Henry Winkler, Jay Baruchel

Dennis Miller, the Light Brigade

Courtney Cox, Louie Anderson

Joel McHale

Susan Sarandon, Dan Boulger

Raquel Welch, Carl Edwards

Kristin Davis, Chris O\'Dowd

Leslie Bibb, David Milch

Jason Segel, Jennette McCurdy

Regis Philbin

Anne Rice, Geoff Tate

Kathy Bates, Brad Goreski

Elizabeth Banks, Bryan Miller

Julie Chen, Pau Gasol

Ted Danson, Hannah Simone

Jeffrey Tambor

Jeffrey Dean Morgan, Jennifer Coolidge

Laura Linney

Billy Gardell, Ian Gomez

Guy Pearce, Jessica St. Clair

Adam Goldberg, Robbie Montgomery

Judd Apatow, Katherine Jenkins

Sean Hayes, Lena Dunham

Kathy Griffin

Kevin Kline, Alice Eve

Michael Sheen, Michael Ian Black

Kelly Preston, Joel Stein

Emily Deschanel, Jerry Ferrara

Toni Collette, Mike Massimino

Patton Oswalt, Phoebe Tonkin

Jim Gaffigan, Cat Cora

Jesse Tyler Ferguson, Lennon Parham

Anjelica Huston, Reno Wilson

Julie Andrews, Michael Emerson

Zooey Deschanel, Patrick Warburton

Poppy Montgomery, Steve Guttenberg

Steven Tyler, Jamie King

Jenna Fischer, Danny Huston

Christiane Amanpour, Anna Kendrick

Larry King, Anna Chlumsky

Craig visits Scotland with Mila Kunis, Michael Clarke Duncan, Rashida Jones, David Sedaris, Ariel Tweto, the Imagineers

Craig visits Arbroath with Scotland First Minister Alex Salmond, Rashida Jones, the Imagineers

Craig visits Cumbernauld with Michael Clarke Duncan, the Imagineers

Craig visits Glasgow & Edinburgh with Mila Kunis, the Imagineers

Craig visits Glamis Castle with David Sedaris, Ariel Tweto, the Imagineers

Jeffrey Dean Morgan, Stephen Wright

Billy Bob Thornton, Sonya Walger

Jennifer Love Hewitt, Keke Palmer

Alfred Molina

Jason Alexander, Angela Kinsey

Benjamin McKenzie, Shohreh Aghdashloo

D.J. Qualls, Wolfgang Puck

Howie Mandel

Carrie Fisher, Tony Hale

Jeff Garlin, Sonya Walger

Jason Schwartzman, Rory Scovel

Andy Garcia, Cody Horn, Matt Kirshen

Ellen Page, Lee Brice

Don Rickles, Max Greenfield

Jenna Elfman, Don Winslow, the Imagineers

Kelly MacDonald, Kevin McKidd

Steve Carell, Snoop Dogg

Morgan Freeman, Ben Dukes

Jeff Daniels, John Irving

Mark Wahlberg

Elijah Wood, Kathleen Rose Perkins

Breckin Meyer

Lisa Kudrow, Harvey Weinstein

Denis Leary, Brandi Carlile

Tyler Perry, Matt Kirshen

Julie Chen, Chris Messina

Cedric the Entertainer, Ari Graynor

Ray Romano, Trampled By Turtles

Kenneth Branagh, Ted Alexandro

Jason Biggs, Jordana Brewster

George Hamilton, Julie Gonzalo

Minnie Driver, Colin Mochrie

Matthew McConaughey, Brian Scolaro

Emile Hirsch, Ariel Tweto

Vince Vaughn, Joanne Froggatt, Joss Stone

Emma Roberts, Paula Poundstone

Rosie Perez

Selma Blair, Adam Savage

Rashida Jones, Julie Delpy

Edward Norton, Malin Akerman

Stephen King, Dave Barry, the Rock Bottom Remainders

Rachael Ray, the Imagineers

Chris Hardwick, Carla Gugino

Kristen Bell

Larry King, Michelle Buteau

Jeffrey Dean Morgan, Fiona Gubelmann

Lisa Kudrow

Seth Green, Sutton Foster

Kathy Griffin, Tedeschi Trucks Band

Jeremy Irons, Monica Potter

Angela Kinsey, David Simon, the Heavy

Jeff Goldblum, Lauren Miller

Ben Stein

Adam Goldberg

Heather Graham, Joel Stein

Katey Sagal, Mike Massimino

Tom Lennon

Julie Chen, Warren Sapp, Lianne La Havas

John Goodman, Arjay Smith, Melissa Etheridge

Nikki Reed, Mitch Albom

Mitch Albom

Neil Patrick Harris

Dennis Quaid, Ellie Kemper

Tom Selleck, June Diane Raphael

Jim Parsons, Dispatch

Anne Heche, Jennifer Carpenter

Michael C. Hall, Martha Plimpton

Ethan Hawke, Lynyrd Skynyrd

Mindy Kaling, Carrot Top

Keanu Reeves, Dan Riskin

Roseanne Barr, Keke Palmer

Dr. Sanjay Gupta, Ginnifer Goodwin

Jeff Goldblum, Sarah Paulson

Lauren Graham, James Patterson, Michael Kiwanuka

Kay Adams, Carson Kressley

Kelsey Grammer, Casey Wilson, Nina Conti

Chelsea Handler, Allen Stone

Bryan Cranston, Dr. Lisa Masterson

Dr. Phil McGraw, Hana Mae Lee

Susan Sarandon, Thomas Dale

Michael Chiklis, Maggie Grace

Amanda Peet, John Cho

Tom Hanks, Phil Handley

Jay Leno

Demi Lovato, Anne Rice

Joel McHale, Wolfgang Puck

Michael Sheen, Ophira Eisenberg

Tenacious D, Sarah Shahi

Carrie Fisher, RZA

LL Cool J, Naomie Harris

Eric Idle, Emily VanCamp

Nikki Reed, Dave Attell

Toby Keith, J.R. Martinez

Billy Crystal, Berenice Marlohe

Max Greenfield, Lucy Punch

James Spader, Cynthia Littleton

Regis Philbin, Katie Aselton

Marion Cotillard, Kevin Pollack

Lily Tomlin, Matthew Gray Gubler

James Marsden, Daniela Ruah, Cory Kahaney

Lewis Black, Karen Gillan, LP

Kristin Davis, Nat Faxon

Tim Meadows, Mayim Bialik

Seth MacFarlane, Miranda Kerr, Richie Sambora

Reba McEntire, Richie Sambora

Richie Sambora

Denis Leary, Richie Sambora

Julie Delpy, Richie Sambora

Kristen Stewart, Sloane Crosley, Terry Fator

Betty White, Morena Baccarin, Dylan Moran

Chris O'Dowd, Beth Behrs

Howie Mandel, Olivia Williams

Bradley Cooper, Wolfgang Puck

Sarah Chalke, Anne Rice

Don Johnson, Brad Goreski

Judd Apatow, Joanne Froggatt

Quentin Tarantino

Jamie Foxx, Bianca Kajlich