Mandy Patinkin

Actor Best Known for "Homeland," "Criminal Minds" and "The Princess Bride"

Paul Giamatti

Actor; Appeared in "Sideways" and "The Illusionist"

Paul Giamatti | Full Q&A | Oxford Union

Donna Karan

Award-Winning Fashion Designer

Gayle King

Co-Host of "CBS This Morning" & Editor-At-Large of O, The Oprah Magazine

Frances McDormand

Emmy, Oscar & Tony Award-Winning Actress

Kelly Ripa

Host of "Live! with Kelly and Mark"

Martin Sheen

Award-Winning Actor Known for "The West Wing" & "Grace and Frankie;" Social Activist & Humanitarian

Kyra Sedgwick

Actress; Best Known for the Role of Deputy Chief Brenda Leigh Johnson on TNT's "The Closer"

James Franco

Actor and Filmmaker; Known for "Oz the Great and Powerful" and "Spider-Man"

Bill O'Reilly

Host of "The O'Reilly Factor," Best-Selling Author & Syndicated News Columnist

Julianna Margulies

Emmy Award-Winning Actress & Producer; Best Known for Her Role in "The Good Wife"

Joey Bada$$

Hip Hop Artist & Founding Member of the Hip Hop Collective Pro Era

Jessica Szohr

American Actress known for her role on "Gossip Girl"

Molly Sims

Actress, Model & Lifestyle Expert; Environmental & Ocean Activist

Lupita Nyong'o

Academy Award-Winning Actress; Known for "12 Years a Slave," "Black Panther" & "Us"

Sigourney Weaver

Golden Globe-Winning Actress & Environmentalist

Katharine McPhee

American Pop Singer, Songwriter and Actress; Known for Her Role on NBC's "Smash"

Sam Palmisano

Former Chairman, President & Chief Executive Officer IBM Corporation

Joe Kernen

Co-Anchor, Squawk Box