Actor Jim Gaffigan (American Dreamer (2018)); journalist Ann Curry (Chasing the Cure (2019)).

Former Vice President and presidential candidate Joe Biden. Also: Pixies perform.

South Bend, Indiana mayor and presidential candidate Pete Buttigieg; Graham Norton (The Graham Norton Show (2007), novel "A Keeper").

Former Secretary of State Condoleezza Rice (book "To Build a Better World: Choices to End the Cold War and Create a Global Commonwealth"); actor Bill Skarsgård (It Chapter Two (2019)). Also: Banks performs.

Actor Ansel Elgort (The Goldfinch (2019)); journalists Jodi Kantor and Megan Twohey (book "She Said: Breaking the Sexual Harassment Story That Helped Ignite a Movement").

Actor James McAvoy (It Chapter Two (2019)); author Stephen King (novel "The Institute"). Also: Vampire Weekend performs.

In a live broadcast after the third Democratic presidential debate, Stephen welcomes journalist Jake Tapper (The Lead with Jake Tapper (2013)) and podcast host Jon Lovett ("Lovett or Leave It").

Actor Tom Hiddleston (Broadway play "Betrayal"); talk show host Marie Osmond (The Talk (2010)).

Senator Elizabeth Warren (D-Mass), Democratic presidential candidate; actors Maureen McCormick, Barry Williams, Eve Plumb, Christopher Knight, Susan Olsen and Mike Lookinland (The Brady Bunch (1969), A Very Brady Renovation (2019)).

Billy Crystal (comedy app "Roast 'Em"). Also: Thomas Rhett performs.

Actress Taraji P. Henson (Empire (2015)); actor Aasif Mandvi (Evil (2019)). Also: Kevin Camia performs stand-up.

Stephen presents a variety of highlights from the past year, including monologues, interviews with entertainers and politicians, and sketches.

Singer-songwriter Paul McCartney (children's book "Hey Grandude!").

Talk show host Whoopi Goldberg (The View (1997), book "The Unqualified Hostess: I do it my way so you can too!"); author Ta-Nehisi Coates (novel "The Water Dancer").

Actress Renée Zellweger (Judy (2019)); actor Walton Goggins (The Unicorn (2019)). Also: An appearance by New Zealand prime minister Jacinda Ardern.

Sen. Bernie Sanders (I-Vt), Democratic presidential candidate. Also: Brittany Howard performs.

Actress Patricia Heaton (Carol's Second Act (2019)). Also: Tegan and Sara (memoir "High School", album "Hey, I'm Just Like You") are interviewed and perform.

Former Secretary of State Hillary Rodham Clinton and her daughter Chelsea Clinton (book "The Book of Gutsy Women"). Also: Wilco performs.

TV host Rachel Maddow (The Rachel Maddow Show (2008), book "Blowout: Corrupted Democracy, Rogue State Russia, and the Richest, Most Destructive Industry on Earth"); musician Thom Yorke (album "Anima") performs.

Actor Rami Malek (Mr. Robot (2015)); writer-director-producer Jill Soloway (Transparent (2014)). Also: Leah Bonnema performs stand-up.

Carrie Underwood (album "Cry Pretty") is interviewed and performs. Also: Writer-director Kevin Smith and actor Jason Mewes (Jay and Silent Bob Reboot (2019)).

Actor Jon Hamm (Lucy in the Sky (2019)). Also: New York Mets first baseman Pete Alonso takes batting practice with Stephen.

Astrophysicist Neil deGrasse Tyson (book "Letters from an Astrophysicist"); former national security advisor Susan Rice (memoir "Tough Love: My Story of the Things Worth Fighting For").

Actor Will Smith (Gemini Man (2019)); actor Andrew Scott (Fleabag (2016)).

TV personality Jonathan Van Ness (memoir "Over the Top: A Raw Journey to Self-Love"); actor Brett Gelman (Fleabag (2016)). Also: Questions for Democratic presidential candidates Elizabeth Warren, Bernie Sanders and Pete Buttigieg.

TV host John Oliver (Last Week Tonight with John Oliver (2014)) and actress Amy Sedaris (At Home with Amy Sedaris (2017)) each interview Stephen; singer-songwriter Paul McCartney recalls The Beatles' stadium concerts and being knighted. Also: Big Thief performs.

Actress Julie Andrews (book "Home Work: A Memoir of My Hollywood Years"); actor Jonathan Groff (off-Broadway musical "Little Shop of Horrors"). Also: Yungblud performs with Dan Reynolds.

Author John Lithgow (book "Dumpty: The Age of Trump in Verse"); actress Camila Mendes ("Riverdale"). Also: Julie Andrews and Stephen read A.A. Milne's "The King's Breakfast".

Journalist Ronan Farrow (book "Catch and Kill: Lies, Spies, and a Conspiracy to Protect Predators"); writer-producer-actress Andrea Savage (I'm Sorry (2017)).

Actor Steve Carell (The Morning Show (2019)). Also: Toby Keith performs.

Actor Eddie Murphy (Dolemite Is My Name (2019)). Also: Ree Drummond (The Pioneer Woman (2011)) makes shrimp with grits and cocktails, and a Halloween dessert.

Actress Queen Latifah (The Little Mermaid Live! (2019)); Vanity Fair editor-in-chief Radhika Jones (book "Vanity Fair's Women on Women").

Actress Jennifer Ansiton (The Morning Show (2019)); actor Thomas Middleditch (Silicon Valley (2014)).

Actor Norman Reedus (The Walking Dead (2010)); actress Cynthia Erivo (Harriet (2019)). Also: Miranda Lambert performs.

Speaker of the House Nancy Pelosi discusses the House vote to open an impeachment inquiry.

TV host Conan O'Brien (Conan (2010)) and rapper-producer Curtis '50 Cent' Jackson each interview Stephen; actor Rob Corddry (The Unicorn (2019)). Also: Stephen answers audience questions.

Country singer Tim McGraw (book "Grit and Grace: Train the Mind, Train the Body, Own Your Life"); Sen. Sherrod Brown (D-Ohio) (book "Desk 88: Eight Progressive Senators Who Changed America").

Writer-director-actress Elizabeth Banks (Charlie's Angels (2019)); 2020 Democratic presidential candidate Sen. Amy Klobuchar (D-Minn).

Actress Helen Mirren and actor Ian McKellen (The Good Liar (2019)). Also: Kid contestants from MasterChef Junior (2013) (cookbook "MasterChef Junior Bakes!") make desserts.

Journalist John Dickerson (60 Minutes (1968)) discusses the presidential race and the impeachment inquiry. Also: King Princess performs.

Actor Liev Schreiber (Ray Donovan (2013)); actor Daniel Kaluuya (Queen & Slim (2019)). Also: Cold War Kids perform.

Actor Tim Robbins (Dark Waters (2019)); political analyst Nicolle Wallace (Deadline: White House (2017)).

Actor Mark Ruffalo (Dark Waters (2019)); TV host Andy Cohen (Watch What Happens Live with Andy Cohen (2009)). Also: Thom Yorke performs.

Actor David Harbour (Stranger Things (2016)); Karen Olivo and Aaron Tveit (musical "Moulin Rouge!") are interviewed and perform.

New Zealand Week begins with Stephen visiting Prime Minister Jacinda Ardern; actor Adam Driver (Marriage Story (2019)). Also: The 1975 performs.

Actress Lucy Lawless and actor Bret McKenzie teach Stephen how to eat, talk and act like a New Zealander; actress Helena Bonham Carter (The Crown (2016)); Lady Antebellum perform.

In a live show after the fifth Democratic presidential debate, Stephen plays rugby with the New Zealand All Blacks; journalists John Heilemann and Alex Wagner (The Circus: Inside the Greatest Political Show on Earth (2016)).

Stephen makes a new Lord of the Rings trilogy with Peter Jackson; Sen. Kamala Harris (D-Calif), Democratic presidential candidate. Also: Lady Antebellum performs.

Stephen explores the outdoors in New Zealand; actor Daniel Craig (Knives Out (2019)); writer-producer Lena Waithe (Queen & Slim (2019)).

Actor Robert De Niro (The Irishman (2019)); writer-director J.J. Abrams (Star Wars: Episode IX - The Rise of Skywalker (2019)).

Actor Paul Rudd (Living with Yourself (2019)); actress Adrienne Warren (Broadway's "Tina: The Tina Turner Musical").

Actor LL Cool J (NCIS: Los Angeles (2009)); chef José Andrés (cookbook "Vegetables Unleashed") is interviewed and makes Thanksgiving dinner.

Actor Eddie Redmayne (The Aeronauts (2019)); comic Joe Pera (Joe Pera Talks with You (2018)). Also: Pharrell Williams performs.

Actress Scarlett Johansson (Marriage Story (2019)). Also: The Weeknd performs.

Singer-songwriter Pharrell Williams (The Black Godfather (2019)); actor Chris Parnell (Rick and Morty (2013)). Also: The Weeknd performs.

Actress Saoirse Ronan (Little Women (2019)); journalist Tom Brokaw;

Actor Ed Harris (Broadway play "To Kill a Mockingbird"); actress Florence Pugh (Little Women (2019)). Also: Jon Batiste performs.

Actor Clive Owen (The Song of Names (2019)); former U.N. Ambassador Samantha Power (memoir "The Education of an Idealist"). Also: Thomas Rhett performs.

Rep. Adam Schiff (D-Calif), chairman of the House Intelligence Committee, discusses the impeachment investigation.

Actor Mark Harmon (NCIS (2003)); the cast of Star Wars: Episode IX - The Rise of Skywalker (2019) answers questions from the staff. Also: Caitlin Weierhauser performs stand-up.

Actor Aaron Paul (Truth Be Told (2019)) discusses his Dos Hombres mezcal. Also: Idina Menzel performs.

Actor Jamie Foxx (Just Mercy (2019)). Also: Stephen is joined by Tony the Tiger in an effort to promote school sports.

Actress Charlize Theron (Bombshell (2019)); Stephen has a contentious interview with Rudy Giuliani. Also: Martha Stewart (cookbook "Martha Stewart's Cookie Perfection") makes Christmas cookies and cocktails.

Actress Jennifer Hudson (Cats (2019)); actor Jonathan Pryce (The Two Popes (2019)). Also: Sharon Van Etten performs with Norah Jones.

Jane Fonda discusses her Fire Drill Fridays climate change protests; Tan France (Next in Fashion (2020)). Also: Miranda Lambert performs.

Actors Rose Byrne (Like a Boss (2020)) and Bobby Cannavale (play "Medea"); Jamie Oliver (cookbook "Ultimate Veg") makes mushroom Stroganoff and an angry bean salad. Also: Kate Willett performs stand-up.

Actor Larry David (Curb Your Enthusiasm (2000)). Also: Pedro Gonzalez performs stand-up.

Senator Bernie Sanders (I-Vt) discusses his presidential campaign and the impeachment situation; actor Penn Badgley (You (2018)).

Actress Laura Dern (Marriage Story (2019), Little Women (2019)). Also: Kesha (album "High Road") is interviewed and performs with Big Freedia.

TV hosts Joe Scarborough and Mika Brzezinski (Morning Joe (2007)). Also: A performance by the cast of Broadway's "TINA: The Tina Turner Musical".

In a live show following the seventh Democratic presidential debate, Stephen talks with former New York City mayor Michael Bloomberg. Also: Stephen answers questions from the audience.

Democratic presidential candidate Andrew Yang; actress Abby McEnany (Work in Progress (2019)).

Actor Josh Gad (Avenue 5 (2020)); TV host Tamron Hall (Tamron Hall (2019)). Also: Tiana Major9 and Earthgang perform.

Comic Jim Gaffigan (Troop Zero (2019)); Tom Steyer, 2020 Democratic presidential candidate;

Actor Patrick Stewart (Star Trek: Picard (2020)); TV personality Dick Cavett;

Comic John Mulaney (Dickinson (2019) and John Mulaney & the Sack Lunch Bunch (2019)); comic Fortune Feimster (Fortune Feimster: Sweet & Salty (2020));

Journalist Chris Cuomo; actor David Alan Grier (Broadway's "A Soldier's Play"); Algiers performs;

Actor Antonio Banderas ("Dolittle" and "Pain and Glory"); actor Jay Hernandez ("Magnum P.I."); YouTuber Coyote Peterson;

Steve Martin talks and performs with the Steep Canyon Rangers;

Comedian and TV hostess Samantha Bee; singer/songwriter Michael Stipe;

Actress Edie Falco (Tommy (2020)); comic Fortune Feimster; Algiers perform; TV personalities Monica Aldama, La Darius Marshall, Jerry Harris, and Gabi Butler;

Singer/songwriter James Taylor; actor Rob McElhenney ("Mythic Quest: Raven's Banquet"); Moses Sumney performs;

Actor John Leguizamo ("The Night Clerk"); journalists Philip Rucker and Carol Leonnig;

Actor Jim Carrey ("Sonic the Hedgehog"); Michael Kiwanuka performs;

Pete Buttigieg, 2020 Democratic presidential candidate; actor Patton Oswalt ("The Goldbergs", "BoJack Horseman", and "A.P. Bio");

Singer James Taylor; actor Joe Mantegna ("Criminal Minds"); wildlife educator Coyote Peterson; Michael Kiwanuka performs;

TV host John Oliver ("Last Week Tonight with John Oliver"); Alex Ebert performs;

Actress Julia Louis-Dreyfus ("Downhill"); Moses Sumney performs;

Actor Will Ferrell ("Downhill");

Actor James Marsden ("Sonic the Hedgehog"); actor Sam Heughan ("Outlander"); TV host John Oliver ("Last Week Tonight with John Oliver");

Model Tyra Banks ("Modelland"); former Chicago Mayor Rahm Emanuel (book, "The Nation City"); Hailee Steinfeld performs;

Former Gov. Chris Christie; Nathaniel Rateliff performs;

Actor Jason Segel ("Dispatches From Elsewhere"); journalist Charlotte Alter; Sen. Elizabeth Warren (D-Mass), 2020 Democratic presidential candidate;

Actor John Turturro ("The Jesus Rolls"); radio personality Charlamagne Tha God; Kaleo perform;

TV personality Tyra Banks (theme park, "Model Land"); TV host Coyote Peterson ("Coyote Peterson: Brave the Wild");

Actor Ty Burrell ("Modern Family"); journalist John Heilemann; James Taylor performs;

Actor Anthony Mackie ("The Woman in the Window"); journalist Susan Glasser;

Journalist Chris Hayes ("All In with Chris Hayes"); TV personality David Chang;

Keith Urban (55th Annual Academy of Country Music Awards (2020)) talks and performs; actress Casey Wilson (Black Monday (2019));

Astrophysicist Neil deGrasse Tyson (Cosmos: Possible Worlds (2020)); comic Hannah Einbinder; actor Ty Burrell (Modern Family (2009));

Actor John Krasinski (A Quiet Place Part II (2020)); Rachael and Vilray perform;

Former professional basketball player Charles Barkley; actor Peter Sarsgaard ("Best Summer Ever");

Actor Hank Azaria ("Brockmire"); actress Suzy Nakamura ("Avenue 5");

Due to COVID-19 pandemic, the normal show with audience and guests is replaced with a taped rehearsal where Stephen and his crew try to kick back and relax while covering the pandemic and politics with Dr. Sanjay Gupta as their sole guest.

Stephen Colbert from home; TV host John Oliver (Last Week Tonight with John Oliver (2014));

Actor Daniel Radcliffe; journalist Jonathan Karl (book, "Front Row at the Trump Show");

Stephen Colbert from home; actor Ryan Reynolds;

Stephen Colbert from home; Alicia Keys talks and performs; Rep. Nancy Pelosi (D-Calif), U.S. Speaker of the House;

Music artist Chance the Rapper; Jim James performs; actor Thomas Lennon ("Reno 911");

TV host Conan O'Brien (Conan (2010)); Michael Stipe performs;

Sen. Bernie Sanders (I-Vt); Brandi Carlile performs a musical tribute to John Prine;

Podcast Pod Save America (2017) hosts Jon Favreau, Jon Lovett, and Tommy Vietor; presidential historian Jon Meacham; Dave Matthews performs a musical tribute to John Prine;

Actor Matthew McConaughey; Sam Hunt performs;

Stephen Colbert from home; Dr. Jonathan LaPook, CBS News chief medical correspondent; actress Cate Blanchett ("Stateless" and "Mrs. America");

Retired professional basketball player Shaquille O'Neal; astronaut Jessica Meir; Matt Berninger performs;

Actress/writer Phoebe Waller-Bridge ("Fleabag" and "No Time to Die"); Christine and the Queens perform; actor Steve Martin;

Stephen Colbert at home; TV host Trevor Noah ("The Daily Show"); chef Jose Andres; Willie, Lukas, and Micah Nelson perform;

Stephen Colbert at home; Michael Moore; Brett Eldredge performs;

Stephen Colbert from home; actor Nathan Lane ("Penny Dreadful: City of Angels"); chef Jose Andres;

Stephen Colbert from home; actors Claire Danes and Mandy Patinkin ("Homeland"); Bill Gates, co-founder of Microsoft;

Stephen Colbert from home; comic John Mulaney; John Fogerty performs;

Stephen Colbert from home; actor Jake Gyllenhaal; M. Ward performs;

Stephen Colbert from home; Sen. Amy Klobuchar (D-Minn.); Pete Buttigieg, former mayor of South Bend, Ind.; Haim perform;

Stephen Colbert from home; U.S. Sen. Chuck Schumer (D-N.Y.); actor Paul Giamatti ("Billions");

Stephen Colbert from home; actress Thandie Newton ("Westworld"); chef Ina Garten; comic John Mulaney ("Saturday Night Live");

Stephen Colbert from home; TV host Anderson Cooper ("Anderson Cooper 360" and "CNN Newsroom"); Mark Foster performs;

Stephen Colbert from home; author Stephen King; Sheryl Crow performs;

Stephen Colbert from home; actor Robert De Niro; Randy Newman; columnist Alison Roman;

Stephen Colbert from home; Gov. Andrew Cuomo (D-NY); Christine and the Queens performs;

Stephen Colbert from home; journalist Jake Tapper ("State of the Union with Jake Tapper"); Tame Impala perform;

Stephen Colbert at home; actress Christine Baranski ("The Good Fight"); actress Ellie Kemper ("The Unbreakable Kimmy Schmidt: Kimmy vs. the Revendend");

Stephen Colbert from home; actor Hugh Laurie ("Avenue 5"); Benjamin Gibbard performs;

Stephen Colbert from home; actor John Lithgow ("Perry Mason"); author Alison Roman;

Stephen Colbert from home; actor Kumail Nanjiani ("The Love Birds"); Andra Day performs; special appearance by Elmo;

Stephen Colbert from home; TV hostess Gayle King ("CBS This Morning"); actress Amy Sedaris ("Unbreakable Kimmy Schmidt: Kimmy vs. the Revereand" and "At Home with Amy Sedaris");

Stephen Colbert from home; actor Steve Carell; TV host Keegan-Michael Key ("Game On"); Wilco performs; actor Nick Kroll;

Stephen Colbert from home; Democratic presidential candidate Joe Biden; Milky Chance and Jack Johnson perform;

Stephen Colbert at home; rapper Killer Mike; journalist Chris Hayes; Brian Wilson performs;

Stephen Colbert at home; TV host Keegan-Michael Key (Game On! (2020)); Wes Moore, CEO of the Robin Hood Foundation;

Stephen Colbert from home; TV personality Charlamagne Tha God; Kristen Bell; Tunde Adebimpe performs;

Stephen Colbert from home; Sen. Cory Booker (D-N.J.); journalist Andrew Ross Sorkin ("Squawk Box"); Brian Wilson performs;

Stephen Colbert from home; Rep. Karen Bass (D-Calif), Congressional Black Caucus chair; filmmaker Judd Apatow (The King of Staten Island (2020)); journalist Andrew Ross Sorkin ("Squawk Box"); Grace Potter performs with Jackson Browne, Marcus King, Lucius;

Stephen Colbert from home; journalist Chris Wallace (book, "Countdown 1945: The Extraordinary Story of the Atomic Bomb and the 116 Days That Changed the World"); sports analyst Emmanuel Acho; The Flaming Lips perform;

Stephen Colbert from home; Stacey Abrams, Fair Fight Action founder; professional soccer player Megan Rapinoe; The Flaming Lips perform;

Stephen Colbert from home; Washington Post reporter Wesley Lowery; filmmaker Judd Apatow ("The King of Staten Island");

Stephen Colbert from home; journalist John Dickerson (book, "The Hardest Job in the World: The American Presidency"); Black Pumas perform Tracy Chapman's "Fast Car";

Stephen Colbert from home; TV personality Hasan Minhaj; Jason Isbelle and the 400 Unit perform;

Stephen Colbert from home; Sen. Kamala Harris (D-Calif); Milky Chance and Jack Johnson perform;

Stephen Colbert from home; Sherrilyn Ifill, President of the NAACP Legal Defense Fund; comic Mike Birbiglia ("Billions");

Stephen Colbert from home; talk show host James Corden (The Late Late Show with James Corden (2015)); actress Laura Benanti (Worth (2020)); Bright Eyes perform;

Stephen Colbert from home; John Bolton, former national security advisor; Noah Cyrus and Billy Ray Cyrus perform;

Stephen Colbert from home; comic/director Jon Stewart (Irresistible (2020));

Stephen Colbert from home; author Ibram X. Kendi; comic Patton Oswalt ("Adventures in Wonder Park");

Stephen Colbert hosts from home; anchor/managing editor Norah O'Donnell (CBS Evening News with Norah O'Donnell (1962)); IDK performs;

Stephen Colbert hosts from home; actor Tom Hanks (Greyhound (2020)); Noah Cyrus and Billy Ray Cyrus perform;

Stephen Colbert hosts from home; comic Ricky Gervais (After Life (2019)); comic W. Kamau Bell; Noah Cyrus and Billy Ray Cyrus perform;

Stephen Colbert hosts from home; comic W. Kamau Bell; The Chicks talk and perform;

Stephen Colbert hosts from home; TV host Andy Cohen (Quibi's "The Andy Cohen Diaries"); Phoebe Bridgers performs;

Stephen Colbert hosts from home; activist Greta Thunberg; actor Keegan-Michael Key ("The Prom");

Stephen Colbert hosts from home; author Mary Trump (book, "Too Much and Never Enough: How My Family Created the World's Most Dangerous Man"); actress Kristen Bell ("Central Park" and "The Good Place");

Stephen Colbert hosts from home; filmmaker Ava DuVernay ("Cherish the Day" and "Queen Sugar"); actress Kristen Bell ("Central Park" and "The Good Place"); Ben Folds performs;

Stephen Colbert hosts from home; Dr. Jon LaPook; Maroon 5 performs;

Stephen Colbert hosts from home; actress Laura Linney ("Ozark" and "The Roads Not Taken");

Actor Jason Sudeikis ("Ted Lasso"); journalist April Ryan;

Journalists John Heilemann and Alex Wagner; political advisor Mark McKinnon;

Susan Rice, former national security advisor; Sheryl Cross performs;

Sen. Elizabeth Warren (D-Mass); Regina Spektor performs;

Sen. Bernie Sanders (D-Vt.); Jon Batiste and Nathaniel Rateliff perform;

Former Secretary of State Hillary Rodham Clinton; The Killers perform;

Podcast "Pod Save America" hosts Jon Favreau, Jon Lovett, and Tommy Vietor; Tim McGraw performs; actress Laura Benanti;

Former Rep. Trey Gowdy (R-SC); actors Keanu Reeves and Alex Winter ("Bill and Ted Face the Music");

Rep. Nancy Pelosi (D-Calif), U.S. Speaker of the House; Lucinda Williams performs;

Former Gov. Chris Christie (R-N.J.); Gregory Porter performs;