CNN journalist Anderson Cooper; The Late Show Presents: A Conspiracy Carol.

Actor Denzel Washington; actress Maggie Gyllenhaal; a musical tribute (#1 Trilly) to the 20th-anniversary celebration of "Lord of the Rings" featuring special guests: Dominic Monaghan, Billy Boyd, Sean Astin, Elijah Wood, Anna Kendrick, Method Man, Killer Mike, Orlando Bloom, Andy Serkis, and Hugo Weaving.

Actor Henry Cavill; actor Jonathan Groff.

Actor Keanu Reeves; holiday performance by Brett Eldredge.

Sting takes the "The Colbert Questionert"; actor David Alan Grier; Holiday Card First Drafts with Evelyn Colbert, Stephen's wife. 

Actor Michael B. Jordan; special Holiday performance by Jon Batiste and Nathaniel Rateliff.

Dr. David Agus; musical performance by Natalie Hemby.

Actresses Kristin Davis and Cynthia Nixon; musical performance by Glass Animals.

Actress Jennifer Lawrence; musical performance by Nathaniel Rateliff & The Night Sweats.

Actor Jeff Goldblum takes "The Colbert Questionert"; from September 15, 2021: composer Stephen Sondheim, who died November 26, 2021.

Actor Mahershala Ali; author Jason Reynolds.

Actor Javier Bardem; musical performance by Gang of Youths. 

Actor Peter Dinklage; actor Lee Jung-Jae ("Squid Game"); performance by Peter Dinklage and Aaron & Bryce Dessner (The National) from the film "Cyrano."

Producer Peter Jackson; Chelsea Cutler performs; the Colbert Small Biz Bump.

Actress Rosamund Pike; film director Peter Jackson.

Lady Gaga; pre-recroded performance by Lady Gaga & Tony Bennett.

Actor Andrew Garfield; chef José Andrés. 

Actor and comic Kevin Hart; musical performance by Robert Plant & Alison Krauss. 

Actor Adam Driver; actress America Ferrera.

Mayor-elect of New York City Eric Adams (first-ever late-night appearance); former professional basketball player Dwyane Wade. 

Actor Paul Rudd; musical performance by Sting.

Actor Jeff Goldblum; musical performance by Rod Stewart.

Actor Kenneth Branagh; actress Ellie Kemper.
 

Actress Aubrey Plaza; musician Bruce Springsteen takes "The Colbert Questionert." 
 

Filmmaker Quentin Tarantino; Stephen reveals the 2021 People's "Sexiest Man Alive" to be actor Paul Rudd.

Journalist Jonathan Karl; Brandi Carlile (interview and musical performance).

Actor Tony Hale; musical performance by Snail Mail (television debut).

Actor Billy Porter; actress Annaleigh Ashford.

TV host Andy Cohen; musical performance by Thundercat.

Actor Michael C. Hall; author Michael Eric Dyson.

Huma Abedin, Hillary Clinton's former aide; musician David Byrne talks and performs with the cast of the Broadway musical "American Utopia."

TV host Trevor Noah; musical performance by My Morning Jacket; Halloween Card First Drafts with Evelyn Colbert, Stephen's wife. 

Actor John Leguizamo; actress Thomasin MacKenzie.

Actress Elizabeth Banks; actress Jorja Fox. 

Journalist Katie Couric; musical performance by Gabby Barrett. 

Bruce Springsteen appears for an interview and a solo performance.

Actress Andie MacDowell; musical performance by Lana Del Rey; special appearance by Nick Offerman.

Actor Timothée Chalamet and actress Zendaya (both star in Dune). 

Actress Issa Rae; musical performance by H.E.R.

Actor Nick Offerman; radio and TV personality Charlamagne tha God.

Rep. Adam Schiff (D-Calif.); Kacey Musgraves performs.

Cast of the award-winning HBO series "Succession" in their first late-night appearance together: Brian Cox, Sarah Snook, Kieran Culkin, Alan Ruck, Nicholas Braun, Matthew Macfadyen and J. Smith-Cameron

Author and CNN medical correspondent Dr. Sanjay Gupta; Dune director Denis Villeneuve.

Journalist Bret Baier; comedian Susie Essman.

Actor Michael Keaton; remote musical performance by Zac Brown Band.

Actress Julianna Margulies; musical performance by Toby Keith.

"Colbert Apologizes to Milwaukee;" actress Rebecca Ferguson. 

Actor John Lithgow; musical performance by Theo Croker featuring Wyclef Jean.

Lawyer Anita Hill; actor Alessandro Nivola. 

Host of CBS' The Price Is Right Drew Carey; actress Phoebe Robinson.

Actor Paul Giamatti; Colbert Questionert with comedian Jon Stewart.

Journalist Anderson Cooper; musical performance by John Mayer. 

Singer-songwriter Shawn Mendes; standup comedy from Chris Turner.

Journalists Bob Woodward and Robert Costa; musical performance by Leon Bridges.

The Late Show's Celebration of Season 6: This Time with Laughs! Special clip show with the best Season 6 moments: monologues, Quarantine-While, Colbert Questionert segments, and best guest appearances. Neil deGrasse Tyson takes "The Colbert Questionert" (new footage from March 2 episode).

Actress Melissa McCarthy; musical performance by Lindsey Buckingham.

Actress Jessica Chastain; composer Stephen Sondheim.

Associate Justice of the U.S. Supreme Court Stephen Breyer.

Actor Jeff Daniels; co-host of "CBS Mornings" Nate Burleson.

Actress Sarah Paulson; singer Kacey Musgraves; special appearance by Blue's Clues' original host Steve Burns.

Journalist Chris Wallace; actress Holland Taylor.

Actors Steve Martin, Martin Short, and Selena Gomez; music by The War on Drugs.

Actors Sean and Dylan Penn; musical performance by Crowded House. 

Actor Daniel Radcliffe; musical performance by Dan + Shay.

Actress Amanda Peet; journalist Roger Bennett; CNN correspondent Clarissa Ward from Kabul, Afghanistan. 

CBS's Dr. Jonathan LaPook; standup comedy debut by Fumi Abe. 

Jennifer Hudson talks and performs.

Actor Alan Alda; comdian Gabriel Iglesias.

CNN journalist Brian Stelter; music by Big Red Machine; Barack Obama plays Steven in waste paper basketball.

Author Stephen King; actor Winston Duke. 

Emmy-nominated actress Hannah Einbinder; standup comedy debut by Alex Falcone; special appearance by Zack Snyder directing The Late Show: The Snyder Cut. 

Actress Emily Blunt; sportscaster Bob Costas. 

Actor Jason Sudeikis; musical performance by Yola. 

MSNBC TV host Joy Reid; musical performance by Alessia Cara.

Actor Hugh Jackman; musical performance by Lorde.

Actress Mindy Kaling; standup comedy debut by writer Wally Baram. 

Sir Richard Branson; Rep. Eleanor Holmes Norton (D-D.C.). 

Actor Keegan-Michael Key; musical performance by Tones And I.

Comedian Jim Gaffigan; musical performance by JP Saxe with John Mayer. 

Actor Harvey Keitel; standup comedy performance by Randall Otis. 

JUST ONE QUESTION with the cast of F9: actors Vin Diesel, Helen Mirren, Ludacris, John Cena, Tyrese Gibson, Justin Lin, Jordana Brewster; actors Dominic Monaghan and Billy Boyd from the Lord of the Rings Trilogy with a special appearance by director Peter Jackson; standup comedy performance by Ali Sultan.

Transportation Secretary Pete Buttigieg; actress Katja Herbers.

Stephen interviews actor Robert Duvall at his Virginia farm. Late Show writer Robert Stack and Stephen honor Conan O'Brien's 28 years of late-night television. 

Actress Christine Baranski; musical performance by Joy Oladokun. 

Actress Wanda Sykes; journalist Craig Melvin. 

Actor Andrew Garfield; singer Lorde; special appearance by Gilbert Gottfried. 

Actor Nathan Lane; musical performance by Griff.

CNN journalist Anderson Cooper; musical performance by Sleater-Kinney; Father's Day Card First Drafts with Evelyn Colbert, Stephen's wife. 

CNN's Dr. Sanjay Gupta; actress Rita Moreno. 

Comedian Jon Stewart; musical performance by Oscar-winning artist Jon Batiste; special appearance by comedian Dana Carvey; special appearance by Evelyn Colbert, Stephen's wife. The show returns to the Ed Sullivan Theater with the first live studio audience, fully vaccinated, since March 12, 2020. To date, "A Late Show" has produced 211 episodes remotely since leaving the theater, 15 of them live.

USAID Administrator Samantha Power; musical performance by Maroon 5; special appearance by Seth Rogen. This is the last "A Late Show" due to the COVID-19 quarantine. 

Actor Samuel L. Jackson; TV personality Padma Lakshmi.

Actor Clive Owen; musical performance by Ziwe.

Journalist Chris Matthews; musical performance by Cynthia Erivo.  

Actor Bradley Whitford; journalist Carlos Watson.

Actor Will Arnett; musical performance by Brockhampton; special appearance by Zack Snyder directing The Late Show: The Snyder Cut.

Journalist Gayle King; musical performance by BTS; special appearance by singer Richard Marx.

Actor Anthony Anderson; NIH Director Dr. Francis Collins.

Actor John Krasinski; musical performance by Yo-Yo Ma; special appearance by Evelyn Colbert, Stephen's wife. Krasinski is the first in-person guest since Mar 12, 2020.

Actress Lisa Kudrow; activist Tamika D. Mallory.

Actor Morgan Freeman; comic Tig Notaro.

Businesswoman Cindy McCain; actress MJ Rodriguez.

Actors Billy Crystal and Tiffany Haddish; musical performance by The Black Keys.

Actor Seth Rogen; musical performance by Jack Ingram, Miranda Lambert, and Jon Randall. 

Senator Elizabeth Warren (D-Mass.); actor David Boreanaz, from the CBS drama "Seal Team."

Former First Lady Michelle Obama; special appearance by Seth Rogen.

Journalist Jake Tapper; musician Billie Eilish, also performs.

"The Colbert Questionert" featuring actress Jane Fonda, TV personality John Oliver, and musician Ringo Starr; musical performance by Teddy Swims.

Actress Mila Kunis; musical performance by Sara Kays; Mother's Day Card First Drafts with Evelyn Colbert, Stephen's wife. 

Senator Bernie Sanders (I-Vt.); musical performance by Julia Michaels (LIVE ET/Delayed PT following President Biden's first address to Congress).

Senator Amy Klobuchar (D-Minn.); actor Kyle MacLachlan.

Actor Anthony Mackie; PBS radio show host Terry Gross.

TV hosts Joe Scarborough and Mika Brzezinski; musical performance by Bebe Rexha.

Actor Ed Helms; journalist Susan Page.

Singer Cher; musical performance by Sam Williams.

Actor Anthony Hopkins; director Florian Zeller; Senator Mazie Hirono (D-Hawaii).

Actress Amanda Seyfried; Ashley McBryde performs.

Journalist Willie Geist; actress Maria Bakalova.

Actor Daniel Kaluuya; musical performance by Lucy Dacus; special appearance by Taylor Swift.

Former Speaker of the U.S. House of Representatives and author John Boehner; musical performance by Shelley FKA DRAM.

Actor Hank Azaria; special appearance by Jeff Goldblum, who wants to do your taxes; musical performance by Cheap Trick.

Actor Leslie Odom Jr.; physicist Michio Kaku.

Journalist Ronan Farrow; singer Brandi Carlile, also performs.

TV host John Cena; Senator Tammy Duckworth (D-Ill.).

Actress Sharon Stone; filmmaker Ken Burns; Easter Card First Drafts with Evelyn Colbert, Stephen's wife. 

Actor Dana Carvey; musical performance by Imagine Dragons.

Actor Robert Downey Jr.; author Walter Isaacson; musical performance by Sebastián Yatra and Guaynaa.

Senate Majority Leader Chuck Schumer (D-N.Y.); actor Jared Leto; musical performance by LANCO. 

Businessman Magic Johnson; actor/comedian Eric Andre.

Actress Lupita Nyong'o; actor Martin Freeman.

Musician Ringo Starr; special appearances by singers Laura Benanti and Christopher Jackson.

Dr. Anthony Fauci, White House Chief Medical Advisor and Director of the National Institute of Allergy and Infectious Diseases (his first appearance); this special episode marked the first anniversary of the last show from the Ed Sullivan Theater on March 12, 2020. Steven describes this episode: "A Late Show Quaranniversary Special: The Year That Took 100 Years But Was Also Somehow One Long Day."

Actor Aaron Paul; musical performance by Lake Street Dive; the Colbert Questionert with actor Billy Crystal.

Sports analyst Emmanuel Acho; comedian/actress Gina Yashere.

Actor Riz Ahmed; musical performance by Janelle Monáe.

TV host Nicolle Wallace; actress Michaela Coel; musical performance by Kings Of Leon. 

Actress Jane Fonda; from the Paramount+ series Tooning Out the News, the hosts of "Virtue Signal"; musical performance by Kings Of Leon. 

Actor Paul Bettany; musical performance by Metallica.

Astrophysicist Neil deGrasse Tyson; musical performance by Jon Batiste.

Actor Andy Samberg; journalist Clarissa Ward.

Actress Regina King; musical performance by Vic Mensa featuring Wyclef Jean & Peter CottonTale.

Actor Arsenio Hall; special appearance by actor Tim Meadows; musical performance by Celeste. 

Singer Billie Eilish; Punchbowl News Co-Founders Anna Palmer & Jake Sherman.

Business magnate Bill Gates; musical performance by Tune-Yards.

Interview with and musical performance by Blake Shelton; Valentine's Day Card First Drafts with Evelyn Colbert, Stephen's wife.  

Actress Kristen Wiig; actress Rebecca Breeds.

TV host John Oliver; musical performance by Ingrid Andress.

Actress Queen Latifah; actor Steven Yeun.

Actor Robert Downey Jr.; special appearance by actress Tiffany Haddish; musical performance by rock band Metallica; special episode due to today's CBS Sports' broadcast of Super Bowl LV. 

Actress Tiffany Haddish; musical performance by H.E.R. 

Actress Salma Hayek; journalist Mark Harris.

Actress Zendaya; Father James Martin.

Actor Ethan Hawke; musical performance by Mickey Guyton. 

The best of President Joe Biden and Vice President Kamala Harris from past show appearances; Dr. Jill Biden also appears. 

Actor Viggo Mortensen; journalist Charles Blow.

Actor Billy Crystal; Representative Jackie Speier (D-Calif.).

Actor Colin Firth; actor Stanley Tucci; musical performance by Adrianne Lenker.

Professional tennis player Serena Williams; musical performance by Dayglow.

Actress Priyanka Chopra Jonas; magician Derek DelGaudio and director Frank Oz on their new movie "In & Of Itself."

The hosts of "Pod Save America": Jon Lovett, Jon Favreau, and Tommy Vietor; musical performance of "Together" by Peter CottonTale, Chance The Rapper and Cynthia Erivo featuring the Chicago Children's Choir, Chicago Youth Symphony Orchestra, and Kofi Lost (LIVE ET/delayed PT following today's U.S. Presidential Inauguration of Joe Biden). 

Actor Jason Segel; musical performance by Black Pumas.

Senator Cory Booker (D-N.J.); musical performance by Infinity Song; special appearance by actress Laura Benanti; special appearance by comedian Gilbert Gottfried.

The TV hosts of "The Circus": John Heilemann, Mark McKinnon, and Alex Wagner; musical performance by The War On Drugs.

Senator Bernie Sanders (I-Vt.); musical performance by FINNEAS.

TV host Samantha Bee; actor Paul Mescal.

Former FBI Director and author James Comey; actress Lili Reinhart.

Comic Chris Rock; musical performance by Joss Stone; special appearance by Aubrey Plaza.

"The Colbert Questionnert" featuring George Clooney, Tom Hanks, and Meryl Streep; musical performance by The Mountain Goats.

Actress Rachel Brosnahan; musical performance by Julien Baker.

Senator Amy Klobuchar (D-MN); Representative Adam Kinzinger (R-IL); musical performance by Jamila Woods; special live episode following today's storming of the United States Capitol.

Author Dr. Sanjay Gupta; actress Anya Taylor-Joy.

Voting rights activist Stacey Abrams; TV personality RuPaul Charles; musical performance by Maren Morris.