Kristin Scott Thomas, Don Guter

Stephen J. Cannell, Janis Kearney

Sen. Roland Burris, M.I.A.

Mickey Rourke

Danny Boyle

Dr. Martin Indyk, Viola Davis

Garry Shandling

Sean Penn

Danny Glover, Q-Tip

Ashford & Simpson

Suze Orman

Melissa Leo, Carlos Moore

Greg Mortenson, Sen. Robert Menendez

Graham Nash

Neil deGrasse Tyson, David Denby

Former President Jimmy Carter

Lamont Dozier, Raphael Saadiq

Dr. Palitha Kohona, Ravi Nessman

2009 Oscar nominees

Joan Baez

T.C. Boyle

Esperanza Spalding, Adam Cohen

Bill Maher

Bryan Cranston, Becky Quick

Jeffrey Sachs, T.C. Boyle

Neko Case, Rep. Marsha Blackburn

Ian McShane, Thomas Ricks

Robert Gates

Gov. Jennifer Granholm, Noah Wyle

Felicity Huffman, Tony Dungy

Dan Baum, Bill Paxton

EPA Administrator Lisa Jackson, Bobby Womack

Timothy Hutton, Thomas P.M. Barnett

Tricia Rose, Zoe Heller

Christopher Guest, Harry Shearer, Michael McKean

Simon Baker, Newt Gingrich

Dr. Keith Black, The-Dream

A tribute to John Hope Franklin

Carla Harris, Bobby Cannavale

Judith Jamison, Israel Houghton

Judith Jamison

Emmanuel Jal, Sen. Kent Conrad

Jaime Pressly, William Cohan

A tribute to Marvin Gaye

Carlos Santana

Israel Houghton, Seth Davis

Kevin Spacey

Liberian President Ellen Johnson-Sirleaf

Ray Liotta, Gary Locke

James Ingram, Nandan Nilekani

Mark Robert Waldman

Rep. Henry Waxman, Idris Elba

Abraham Verghese, Labelle

Anna Paquin, Robert Greenwald

Dara Torres, India.Arie

Sgt. Juan Luis Alcivar

Rep. Barney Frank, Hugh Masekela

Wangari Maathai

Leslie Gelb, David Brenner

Sgt. Juan Luis Alcivar, Anika Noni Rose

Tracey Ullman

Prince

Bria Valente, Prince

Kristin Chenoweth, Roger Wilkins

Joshua Cooper Ramo, Mike Krzyzewski

Mary Higgins Clark

Thomas Cahill, Ziggy Marley

Sam Haskell, Donald Faison

Darryl Strawberry

Dr. Walter Earl Fluker, Patti Davis

J.J. Abrams

Joe Queenan, Dr. William Baker

Mayor Antonio Villaraigosa, Baron Davis, Stacy Peralta

Steve Earle, John Harwood

Maxwell, Michael Fauntroy

Steve Zahn, Brendan Gleeson

Earth, Wind & Fire, Richard Haass

Steve Martin

Reza Aslan, Common

Ed Asner

Bill Russell

Mandy Moore, Cesar Perales

Norman Lear

Edie Falco, Paul Ingrassia

Vernon Jordan

Nia Vardalos, Azadeh Moaveni

Kevin Bacon, Dave Bing

Nanci Griffith, Mary Frances Berry

Joe Scarborough, Sharon Jones

Larry King

Colson Whitehead, Della Reese

Karen Bass, Mary McCormack

Jerry Leiber, Mike Stoller, Marina Nemat

Chris Noth, Ali Sethi

Roseanne Barr

Luma Mufleh, Rick Steves

Trita Parsi, Hilda Solis

Francis Ford Coppola

Francis Ford Coppola, Femi Kuti

Mary Mary

Katty Kay, Paul Giamatti

A tribute to Michael Jackson, Berry Gordy

Michael Eric Dyson, Dr. Cornel West

Shohreh Aghdashloo, Roger Cohen

Bill Pullman, Debo Adegbile

Jane Mayer, Malina Saval

Jeremy Renner, David Ignatius

Berry Gordy, the Homemade Jamz Blues Band

Lisa Kudrow, Mayor James Young

Peter Peterson, Dr. Michael Roizen

Dr. Olufunmilayo Olopade, Jessica Queller, Diahann Carroll

Jay Leno

Mark Johnson, Jay Leno

Corneille, Rep. Baron Hill

Biz Stone, Gloria Reuben

Davis Guggenheim, David Faber

Dylan McDermott, Warren Moon

Smokey Robinson

Howard Dean, a tribute to Don Hewitt

Arne Duncan, Benjamin Barber

Alexis Bledel, Stan Brock

Quentin Tarantino

Reba McEntire, Dean Koontz

Rep. John Lewis, Vernon Jordan

Ron Williams, Eric Sundquist

Josh Charles, Douglas Brinkley

Doug Pray, Robert Baer

Alex S. Jones, Mekhi Phifer

Ledisi, Peter Baker

George Foreman, Fred Kaplan

Terence Blanchard

Smokey Robinson

Ken Burns

Ted Kennedy Jr.

R. Dwayne Betts

Jenna Elfman, Matthew Weiner

Herb Alpert, Lani Hall

David Duchovny, Rep. Mike Pence

Dr. Yvonne Sanders-Butler, Michael Strahan, Daryl Mitchell

Ken Burns

Michael Moore

Tom Ridge, Adam Arkin

Rodrigo y Gabriela, James Brown

Max Blumenthal, Michael C. Hall

Rev. Jesse Jackson Sr., George Benson

Dr. Cornel West

Karen Armstrong, Nick Hornby

Michael Sheen, Aaron S. Williams

James Ellroy, Sen. Bill Nelson

Pete Escovedo, Sheila E.

Dr. Terrence Roberts, Joshua Bell

Amb. Michael Oren, Michael Chabon

Michelle Monaghan, Vali Nasr

Rep. Ron Paul, Bob Herbert

Anthony Edwards, The RZA

Andy Williams

Malcolm Gladwell, Robin D.G. Kelley

Haleh Esfandiari, Nicholas Kristof

Dr. Ruth Simmons

Marcus Roberts, Edward Norton

Kris Kristofferson

Nomi Prins, the Swell Season

Lee Eisenberg, Susie Essman

Mitch Albom, Chiwetel Ejiofor

Andrew Ross Sorkin, Lang Lang

Max Cleland, Amerie

Bruce Feiler

Lance Reddick, Jason Zweig

Dan Senor, Gail Collins

Harry Connick Jr.

Paul Mooney

Andre Agassi

50 Cent

Dave Matthews

Viggo Mortensen

Ali Eteraz, Angie Stone

Amy Goodman, Jason Schwartzman

Malcolm Gladwell, Robin D.G. Kelley

Dr. Ruth Simmons

Ann Louise Bardach, Rev. Jesse Jackson Sr.

Yo-Yo Ma

Gov. David Paterson, Fred Willard

Morgan Freeman

Maggie Gyllenhaal, Jeff Bridges, Sen. Bernie Sanders

Boyz II Men, Ann Louise Bardach

Gov. Ed Rendell, Shirley Caesar

James Cameron

Kenneth Wade, James Bradley

Mary J. Blige

Youth Leadership Panel with Eduardo Campos, Kate Sim, Cortlan Wickliff, Kimberly Anyadike, Galen Dodd & Rocio Ortega

Alan Alda, Tobey Maguire

Sandra Bullock

Joe Torre

Rosanne Cash

Bob Newhart, Dan Balz

Nicole Lee, Jim Wallis

Jason Reitman, Walter Isaacson

Marion Cotillard, Robert Lacey

Keri Russell, Paul Ingrassia