Stephen welcomes TV host John Oliver with stand-up comedy from Joe Dombrowski.

Stephen welcomes actress Jamie Lee Curtis with "The Colbert Questionert" and former basketball player Carmelo Anthony.

Stephen welcomes TV host Drew Barrymore and CEO of NPR Katherine Maher.

Stephen welcomes actor Cillian Murphy and a musical performance by Lady Gaga.

Stephen welcomes supreme Court Justice Sonia Sotomayor and actor Eugene Levy.

Stephen welcomes actress Jennifer Aniston, actor Cooper Hoffman, and "Rescue Dog Rescue" with Jennifer Aniston.

Stephen welcomes singer Usher and Gary Oldman takes "The Colbert Questionert".

Stephen welcomes singer-songwriter Brandi Carlile and chef Samin Nosrat.

Stephen welcomes director Ron Howard and Gary Oldman takes "The Colbert Questionert".

Stephen welcomes journalist Jake Tapper plus an interview with and musical performance by St. Vincent.

Stephen welcomes actress Scarlett Johansson and Senator Mark Kelly.

Stephen welcomes Governor Gavin Newsom and actress Priscilla Presley.

Stephen welcomes Senator Chris Murphy with a performance and talk by Lainey Wilson.

Stephen welcomes actor Jeremy Strong and actress Carrie Preston.

Stephen welcomes writer & TV host Conan O'Brien and a performance by the Broadway cast of Ragtime.

Stephen welcomes television host Jimmy Kimmel and Sam Smith.

Stephen welcomes actress Julia Roberts and a musical performance by Sam Smith.

Stephen welcomes actress & singer Lady Gaga.

Stephen welcomes actors Keanu Reeves & Alex Winter and a musical performance by J.I.D.

Stephen welcomes actress Bette Midler and actor Tim Meadows.

Stephen welcomes TV host Anderson Cooper and actor Mason Thames.

Stephen welcomes actor Nick Offerman, cooking demo with José Andrés, Community Calendar with Nick Offerman, and Nathaniel Rateliff sits in with Louis Cato & the Late Show Band.

Stephen welcomes actor Jeremy Renner, political adviser Karine Jean-Pierre, and acress Laura Benanti.

Stephen welcomes actor Michael J. Fox plus an interview with and musical performance by Jeff Tweedy.

Stephen welcomes actress Emma Stone and podcast host Alex Wagner.

Stephen welcomes actor Ben Stiller and comic Tig Notaro.

Stephen welcomes actress Emma Thompson, author Judd Apatow, and a musical performance by Thundercat with Remi Wolf.

Stephen welcomes actor Colin Farrell and filmmaker Cameron Crowe.

Stephen welcomes actress Sarah Paulson and Senator Ruben Gallego.

Stephen welcomes actor Anthony Hopkins.

Stephen welcomes actor Tom Hanks and a musical performance by Mavis Staples.

Stephen welcomes first Lady Michelle Obama and musician Robert Plant.

Stephen welcomes actress Tiffany Haddish and actor Gary Cole.

Stephen welcomes actress Sydney Sweeney, an interview with and musical performance by Patti Smith, and special appearance by Guillermo del Toro.

Stephen welcomes actress Demi Moore and documentarian Ken Burns.

Stephen welcomes actress Claire Danes and Representative James Clyburn.

Stephen welcomes journalist Jonathan Karl and musician Pete Townshend.

Stephen welcomes actress Julia Roberts with The Colbert Questionert and an interview and performance by musician John Fogerty.

Stephen welcomes actor Ted Danson with a cooking demo by Chef Alison Roman.

Stephen welcomes actor Benedict Cumberbatch, actor Patton Oswalt, and a musical performance by Jesse Welles.

Stephen welcomes Senator Elizabeth Warren and a musical performance by Billy Strings.

Stephen welcomes singer Lady Gaga with The Colbert Questionert, New Jersey Governor-elect Mikie Sherrill, and a musical performance by Kristin Chenoweth & Stephen Schwartz from the Broadway Production of "The Queen of Versailles". Also, a special appearance by Daniel Craig.

Stephen welcomes television host Rachel Maddow and a musical performance by Drive-By Truckers and Jason Isbell.

Stephen welcomes actor Michael Shannon, actress Jessie Buckley, and a special appearance by Prince Harry, The Duke of Sussex.

Stephen welcomes TV host Jen Psaki and musician Weird Al Yankovic.

Stephen welcomes actress Sigourney Weaver, actor Mandy Patinkin, and a performance from George Balanchine's "The Nutcracker" featuring Tiler Peck.

Stephen welcomes actress Laura Dern, author Andrew Ross Sorkin, and Holiday First Drafts with Evie McGee Colbert.

Stephen welcomes singer-songwriter Taylor Swift.

Stephen welcomes actress Kate Winslet and Ben & Jerry's founders Ben Cohen & Jerry Greenfield.

Stephen welcomes actor Paul Rudd and actress Lesley Manville.

Stephen welcomes TV personalities Anderson Cooper & Andy Cohen, a musical performance by The Mountain Goats, and Laura Benanti makes a special appearance.

Stephen welcomes actor Kumail Nanjiani plus an interview with and musical performance by St. Vincent.

Stephen welcomes actor Hugh Jackman, a musical performance by Louis Cato & the Late Show Band, and "Colbert's Canceled Christmas: The Last Noel", narrated by Nick Offerman.