Stephen welcomes actor Jim Gaffigan and journalist Ann Curry.

Stephen welcomes democratic presidential hopeful Joe Biden and a musical performance by Pixies.

Stephen welcomes democratic presidential hopeful Pete Buttigieg and TV host Graham Norton.

Stephen welcomes former Secretary of State Condoleezza Rice, actor Bill Skarsgård, and a musical performance by BANKS.

Stephen welcomes actor Ansel Elgort and journalists Jodi Kantor & Megan Twohey.

Stephen welcomes actor James McAvoy, author Stephen King, and a musical performance by Vampire Weekend.

Stephen welcomes journalist Jake Tapper and screenwriter Jon Lovett.

Stephen welcomes actor Tom Hiddleston and talk show host Marie Osmond.

Stephen welcomes Senator Elizabeth Warren and actors Barry Williams, Maureen McCormick, Christopher Knight, Eve Plumb, Mike Lookinland & Susan Olsen (“The Brady Bunch”).

Stephen welcomes actor Billy Crystal and a musical performance by Thomas Rhett.

Stephen welcomes actress Taraji P. Henson, actor Aasif Mandvi, and comic Kevin Camia.

A recap of the best moments of Season 4.

Stephen welcomes singer-songwriter Paul McCartney.

Stephen welcomes talk show host Whoopi Goldberg and author Ta-Nehisi Coates.

Stephen welcomes actress Renée Zellweger and actor Walton Goggins.

Stephen welcomes Senator Bernie Sanders and a musical performance by Brittany Howard.

Stephen welcomes actress Patricia Heaton plus an interview with and musical performance by Tegan & Sara.

Stephen welcomes former Secretary of State Hillary Rodham Clinton & daughter Chelsea Clinton and a musical performance by Wilco.

Stephen welcomes TV host Rachel Maddow and musician Thom Yorke.

Stephen welcomes actor Rami Malek, TV director Jill Soloway, and comic Leah Bonnema.

Stephen welcomes an interview with and musical performance by Carrie Underwood, filmmaker Kevin Smith, and actor Jason Mewes.

Stephen welcomes actor Jon Hamm and professional baseball player Pete Alonso.

Stephen welcomes astrophysicist Neil deGrasse Tyson and former national security adviser Susan Rice.

Stephen welcomes actor Will Smith and actor Andrew Scott.

Stephen welcomes TV personality Jonathan Van Ness, actor Brett Gelman, a musical performance by Big Thief, and special appearances by Democratic presidential hopefuls Elizabeth Warren, Bernie Sanders & Pete Buttigieg.

Stephen welcomes comic John Oliver, actress Amy Sedaris, singer-songwriter Paul McCartney, and a musical performance by Big Thief.

Stephen welcomes actress Julie Andrews, actor Jonathan Groff, and a musical performance by YUNGBLUD ft. Dan Reynolds.

Stephen welcomes actor John Lithgow, actress Camila Mendes, and actress Julie Andrews.

Stephen welcomes journalist Ronan Farrow and actress Andrea Savage.

Stephen welcomes actor Steve Carell and a musical performance by Toby Keith.

Stephen welcomes actor Eddie Murphy and blogger Ree Drummond.

Stephen welcomes actress Queen Latifah, Radhika Jones, and editor-in-chief of Vanity Fair.

Stephen welcomes actress Jennifer Aniston and actor Thomas Middleditch.

Stephen welcomes actor Norman Reedus, actress Cynthia Erivo, and a musical performance by Miranda Lambert.

Stephen welcomes speaker of the House Nancy Pelosi.

Stephen welcomes rapper Curtis “50 Cent” Jackson, TV host Conan O’Brien, and actor Rob Corddry.

Stephen welcomes country singer Tim McGraw and Sen Sherrod Brown.

Stephen welcomes actress Elizabeth Banks and Senator Amy Klobuchar.

Stephen welcomes actress Helen Mirren, actor Ian McKellen, and contestants from the “MasterChef Junior” contest.

Stephen welcomes journalist John Dickerson, and a musical performance by King Princess.

Stephen welcomes actor Liev Schreiber, actor Daniel Kaluuya, and a musical performance by Cold War Kids.

Stephen welcomes actor Tim Robbins and political analyst Nicolle Wallace.

Stephen welcomes actor Mark Ruffalo, TV host Andy Cohen, and a musical performance by Thom Yorke.

Stephen welcomes actor David Harbour plus an interview with and musical performance by Karen Olivo & Aaron Tveit.

Stephen welcomes actress Helena Bonham Carter, a special appearance by actress Lucy Lawless, actor Bret McKenzie, and “Stephen Colbert: The Newest Zealander” Night 2.

Stephen welcomes journalist John Heilemann and journalist Alex Wagner, plus “Stephen Colbert: The Newest Zealander” Night 3.

Stephen welcomes Senator Kamala Harris and a musical performance by Lady Antebellum, plus “Stephen Colbert: The Newest Zealander” Night 4.

Stephen welcomes actor Daniel Craig and actress Lena Waithe, plus “Stephen Colbert: The Newest Zealander” Night 5.

Stephen welcomes actor Robert De Niro and filmmaker J.J. Abrams.

Stephen welcomes actor Paul Rudd and actress Adrienne Warren.

Stephen welcomes actor LL Cool J, plus an interview with and a cooking demo by José Andrés.

Stephen welcomes actor Eddie Redmayne, comedian/actor Joe Pera, and a musical performance by Pharrell Williams.

Stephen welcomes actress Scarlett Johansson, and a musical performance by The Weeknd.

Stephen welcomes singer-songwriter Pharrell Williams, actor Chris Parnell, and a musical performance by The Weeknd.

Stephen welcomes actress Saoirse Ronan and journalist Tom Brokaw.

Stephen welcomes actor Ed Harris, actress Florence Pugh, and a musical performance by Jon Batiste.

Stephen welcomes actor Clive Owen, former ambassador to the UN Samantha Power, and a musical performance by Thomas Rhett.

Stephen welcomes Rep. Adam Schiff.

Stephen welcomes actor Mark Harmon, a stand-up comedy performance by Caitlin Weierhauser, and a special appearance by the cast of “Star Wars: The Rise of Skywalker.”

Stephen welcomes actor Aaron Paul and a musical performance by Idina Menzel.

Stephen welcomes actor Jamie Foxx.

Stephen welcomes actress Charlize Theron and television personality Martha Stewart.

Stephen welcomes actress Jennifer Hudson, actor Jonathan Pryce, and a musical performance by Sharon Van Etten ft. Norah Jones.

Stephen welcomes actress Jane Fonda, TV personality Tan France, and a musical performance by Miranda Lambert.

Stephen welcomes actress Rose Byrne, actor Bobby Cannavale, chef Jamie Oliver, and a comedy performance by Kate Willett.

Stephen welcomes actor Larry David with a comedy performance by Pedro Gonzalez.

Stephen welcomes democratic presidential hopeful Bernie Sanders and actor Penn Badgley.

Stephen welcomes actress Laura Dern plus an interview with and musical performance by Kesha.

Stephen welcomes TV hosts Joe Scarborough & Mika Brzezinski and a performance by the cast of “TINA: The Tina Turner Musical.”

Stephen welcomes presidential candidate Michael Bloomberg.

Stephen welcomes presidential candidate Andrew Yang and actress Abby McEnany.

Stephen welcomes actor Josh Gad, journalist Tamron Hall, and a musical performance by Tiana Major9 & Earthgang.

Stephen welcomes stand-up comedian Jim Gaffigan and American philanthropist Tom Steyer.

Stephen welcomes actor Patrick Stewart and TV personality Dick Cavett.

Stephen welcomes John Mulaney.

Stephen welcomes journalist Chris Cuomo, actor David Alan Grier, and a special appearance from actor Jon Stewart.

Stephen welcomes actor Antonio Banderas and actor Jay Hernandez, from the CBS drama Magnum P.I.

Stephen welcomes actor Steve Martin, and a musical performance by Steve Martin and the Steep Canyon Rangers.

Stephen welcomes actress Samantha Bee, singer-songwriter Michael Stipe and a special appearance by comedian Dana Carvey.

Stephen welcomes actress Edie Falco, comedian Fortune Feimster, a musical performance by Algiers, and a special appearance by Monica Aldama, La’Darius Marshall, Jerry Harris & Gabi Butler from the cast of “Cheer.”

Stephen welcomes singer-songwriter James Taylor, actor Rob McElhenney, and a special appearance by Triumph The Insult Comic Dog.

Stephen welcomes actor John Leguizamo, reporter Philip Rucker, and journalist Carol Leonnig.

Stephen welcomes actor Jim Carrey.

Stephen welcomes democratic presidential hopeful Pete Buttigieg and actor Patton Oswalt.

Stephen welcomes singer-songwriter James Taylor, actor Joe Mantegna, and a musical performance by Michael Kiwanuka.

Stephen welcomes TV host John Oliver and a musical performance by Alex Ebert.

Stephen welcomes actress Julia Louis-Dreyfus and a musical performance by Moses Sumney.

Stephen welcomes actor Will Ferrell.

Stephen welcomes actor James Marsden, actor Sam Heughan, and a special appearance by John Oliver.

Stephen welcomes former Chicago Mayor Rahm Emanuel, and a musical performance by Hailee Steinfeld.

Stephen welcomes former Gov. Chris Christie and a musical performance by Nathaniel Rateliff.

Stephen welcomes actor Jason Segel, journalist Charlotte Alter, and Senator Elizabeth Warren.

Stephen welcomes actor John Turturro, radio personality Charlamagne Tha God, and a musical performance by KALEO.

Stephen welcomes actress Tyra Banks and wildlife educator Coyote Peterson.

Stephen welcomes actor Ty Burrell, journalist John Heilemann, and a musical performance by James Taylor.

Stephen welcomes actor Anthony Mackie, journalist Susan Glasser, and actor David Alan Grier.

Stephen welcomes journalist Chris Hayes and TV personality David Chang.

Stephen welcomes actress Casey Wilson, plus an interview with and a musical performance by Keith Urban.

Stephen welcomes astrophysicist Neil deGrasse Tyson, a stand-up comedy performance by Hannah Einbinder, and a special appearance by Ty Burrell.

Stephen welcomes actor John Krasinski and a musical performance by Rachael & Vilray.

Stephen welcomes former professional basketball player Charles Barkley and actor Peter Sarsgaard.

Stephen welcomes actor Hank Azaria and actress Suzy Nakamura.

Stephen welcomes medical reporter Dr. Sanjay Gupta.

Stephen Colbert from home, with special guest John Oliver.

Stephen welcomes actor Daniel Radcliffe, journalist Jonathan Karl, and a musical performance by John Prine.

Stephen welcomes actor Ryan Reynolds, and a musical performance by Keith Urban.

Stephen welcomes Speaker of the House Nancy Pelosi, plus an interview with and musical performance by Alicia Keys.

Stephen welcomes singer Lady Gaga, Chance The Rapper, and a musical performance by Jim James.

Stephen welcomes TV host Conan O’Brien and a musical performance by Michael Stipe.

Stephen welcomes Senator Bernie Sanders and a musical tribute to John Prine by Brandi Carlile.

Stephen welcomes hosts of “Pod Save America”: Jon Favreau, Jon Lovett, & Tommy Vietor, author & presidential historian Jon Meacham, and a musical tribute to John Prine by Dave Matthews.

Stephen welcomes actor Matthew McConaughey, and a musical performance by Sam Hunt.

Stephen welcomes CBS News’ chief medical correspondent, Dr. Jonathan LaPook, and actress Cate Blanchett.

Stephen welcomes retired basketball player Shaquille O’Neal, astronaut Jessica Meir, and a musical performance by Matt Berninger of the National.

Stephen welcomes actress Phoebe Waller-Bridge and a special appearance by Steve Martin.

Stephen welcomes television host Trevor Noah, and a musical performance by Willie, Lukas & Micah Nelson.

Stephen welcomes filmmaker Michael Moore and a musical performance by Brett Eldredge.

Stephen welcomes actor Nathan Lane and Chef José Andrés.

Stephen welcomes co-founder of Microsoft Corporation Bill Gates, actress Claire Danes, and actor Mandy Patinkin.

Stephen welcomes comedian John Mulaney and a musical performance by John Fogerty.

Stephen welcomes actor Jake Gyllenhaal, and a musical performance by M. Ward.

Stephen welcomes Senator Amy Klobuchar, Pete Buttigieg, former mayor of South Bend, Ind., and a musical performance by Haim.

Stephen welcomes Senator Chuck Schumer and actor Paul Giamatti.

Stephen welcomes actress Thandie Newton, television host Ina Garten, and a special appearance by John Mulaney.

Stephen welcomes journalist Anderson Cooper and a musical performance by Mark Foster.

Stephen welcomes author Stephen King and a musical performance by Sheryl Crow.

Stephen welcomes actor Robert De Niro and a musical performance by Randy Newman.

Stephen welcomes New York Governor Andrew Cuomo, and a musical performance by Christine & the Queens.

Stephen welcomes journalist Jake Tapper and a musical performance by Tame Impala.

Stephen welcomes actress Christine Baranski and actress Ellie Kemper.

Stephen welcomes actor Hugh Laurie and a musical performance by Benjamin Gibbard.

Stephen welcomes actor John Lithgow and author Alison Roman.

Stephen welcomes actor Kumail Nanjiani, a musical performance by Andra Day, and a special appearance by Elmo.

Stephen welcomes TV host Gayle King and actress Amy Sedaris.

Stephen welcomes actor Steve Carell, and a musical performance by Wilco, plus a special appearance by Nick Kroll.

Stephen welcomes Vice President Joe Biden.

Stephen welcomes rapper Killer Mike and political commentator Chris Hayes.

Stephen welcomes actor Keegan-Michael Key and author Wes Moore.

Stephen welcomes radio personality Charlamagne Tha God and a musical performance by Tunde Adebimpe of TV on the Radio.

Stephen welcomes Senator Cory Booker and a musical performance by Brian Wilson.

Stephen welcomes Rep. Karen Bass, journalist Andrew Ross Sorkin, and a musical performance by Grace Potter with Jackson Browne, Marcus King & Lucius.

Stephen welcomes news anchor Chris Wallace, and sports analyst and former NFL athlete Emmanuel Acho.

Stephen welcomes politician Stacey Abrams, professional soccer player Megan Rapinoe, and a performance by The Flaming Lips.

Stephen welcomes journalist Wesley Lowery and filmmaker Judd Apatow.

Stephen welcomes journalist John Dickerson and a musical performance by Black Pumas.

Stephen welcomes comedian Hasan Minhaj and a musical performance by Jason Isbell & the 400 Unit.

Stephen welcomes Senator Kamala Harris and a musical performance by Milky Chance & Jack Johnson.

Stephen welcomes sherrilyn Ifill, President of the NAACP Legal Defense Fund, and comic Mike Birbiglia.

Stephen welcomes talk show host James Corden, actress Laura Benanti, and a musical performance by Bright Eyes.

Stephen welcomes former national security advisor John Bolton.

Stephen welcomes comic Jon Stewart.

Stephen welcomes author Ibram X. Kendi and comedian Patton Oswalt.

Stephen welcomes journalist Norah O’Donnell and a musical performance by IDK.

Stephen welcomes actor Tom Hanks.

Stephen welcomes actor Ricky Gervais and a musical performance by Noah Cyrus & Billy Ray Cyrus.

Stephen welcomes television host W. Kamau Bell, and a musical performance by The Chicks.

Stephen welcomes talk show host Andy Cohen and a musical performance by Phoebe Bridgers.

Stephen welcomes activist Greta Thunberg and actor Keegan-Michael Key.

Stephen welcomes psychologist Mary Trump.

Stephen welcomes filmmaker Ava DuVernay, actress Kristen Bell, and a musical performance by Ben Folds.

Stephen welcomes Dr. Jon LaPook and a musical performance by Maroon 5.

Stephen welcomes actress Laura Linney.

Stephen welcomes journalist April Ryan and actor Jason Sudeikis.

Stephen welcomes political advisor Mark McKinnon, and journalist Alex Wagner. Plus a musical performance by Baby Rose.

Stephen welcomes former National Security Advisor Susan Rice and a musical performance by Sheryl Crow.

Stephen welcomes Senator Elizabeth Warren and a musical performance by Regina Spektor.

Stephen welcomes Senator Bernie Sanders and a musical performance by Jon Batiste & Nathaniel Rateliff.

Stephen welcomes former Secretary of State Hillary Rodham Clinton and a musical performance by The Killers.

Stephen welcomes Hosts of “Pod Save America”: Jon Favreau, Jon Lovett and Tommy Vietor, a musical performance by Tim McGraw, and a special appearance by actress Laura Benanti.

Stephen welcomes former Congressman Trey Gowdy, actor Keanu Reeves, and actor Alex Winter.

Stephen welcomes Speaker of the House Nancy Pelosi and a musical performance by Lucinda Williams.

Stephen welcomes former Gov. Chris Christie and a musical performance by Gregory Porter.