Year Title Role Notes 1984 The Fall Guy Young Colt's Friend Episode: "Old Heroes Never Die" 1985 The New Leave It to Beaver Nick Episode: "Movin' On" 1991 Our Shining Moment Teenage boy Pilot 1992 The Golden Palace Taxi driver Episode: "Seems Like Old Times: Part 2" Great Scott! Ray Episode: "Book Crook" 1993 Life Goes On Skinhead Episode: "Incident on Main" Northern Exposure Kevin Wilkins Episode 5-5: "A River Doesn't Run Through It" Marked for Murder Car thief Television film 1994 Blind Justice Private The Innocent Marty Prago 1995 All-American Girl Tommy Episode "A Night at the Oprah" Pride & Joy Man Episode: "Brenda's Secret" The Single Guy Randy Episode: "Sister" Touched by an Angel Monte Episode: "Angels on the Air" The X-Files Bart "Zero" Liquori Episode: "D.P.O. " 1995–1996 Mr. Show with Bob and David Various characters 4 episodes Picket Fences Curtis Williams 2 episodes 1997–2000 Tenacious D JB Main role; also co-creator, writer and producer 1998–2025 Saturday Night Live Himself / various 4 episodes as host, 2 as musical guest (with Tenacious D) 1999 Heat Vision and Jack Jack Pilot 2001 Who Wants to Be a Millionaire? Himself He was a celebrity contestant on the American comedy edition of the show on October 22, 2001, hosted by Regis Philbin . Black won $125,000 for the United Mitochondrial Disease Foundation.[ citation needed ] 2002 2002 MTV Movie Awards Himself (host) Television special The Andy Dick Show J.D. Episode: "Flipped" Clone High Pusher / Larry Hardcore (voices) Episode: "Raisin the Stakes" Crank Yankers Tenacious D Episode: "#1.3" MADtv Episode: "#7.22" 2003 Player$ Episode: "Tenacious D a la Mode" Will & Grace Dr. Isaac Hershberg Episode: "Nice in White Satin" 2003, 2004 Computerman Computerman 6 episodes; Also executive producer Time Belt 2 episodes 2004 Cracking Up Bruce Episode: "Scared Straight" Tom Goes to the Mayor Trapper JB (voice) Episode: "Bear Traps" 2006 Kids' Choice Awards Himself (host) Television special MTV Video Music Awards 2007 Acceptable.TV — Executive producer The Naked Trucker and T-Bones Show Jables Episode: "Break-Up" The Simpsons Milo (voice) Episode: "Husbands and Knives " 2008 Sesame Street Himself Episode: "The Golden Triangle of Destiny" Kids' Choice Awards Himself (host) Television special Spike Video Game Awards 2009 The Office Himself (as Sam) Episode: "Stress Relief " Yo Gabba Gabba! Himself Episode: "New Friends" 2010 Community Buddy Austin Episode: "Investigative Journalism " iCarly Aspartamay [ 5] Episode: "iStart a Fanwar" Take Two with Phineas and Ferb Himself Episode: Jack Black; short form series 2011 Kids' Choice Awards Himself (host) Television special 2012, 2015 Comedy Bang! Bang! Himself 2 episodes 2013–2018 Drunk History Various 5 episodes 2013 Metalocalypse: The Doomstar Requiem Dethklok's original manager / Fat Blogger (voices) Television special 2014 Meet Me at the Reck Himself YouTube series; Episode: "Cat in Black Ft. Stampylonghead & Jack Black" 2015 Workaholics Pritchard DeMamp Episode: "Gramps DeMamp is Dead" The Brink [ 6] Alex Talbot 10 episodes; also producer Documentary Now! Jamison Friend Episode: "Dronez: The Hunt for El Chingon" 2016 Panda Republic Narrator (voice) Documentary Australia's Got Talent Guest Judge Episode: "Grand Finale" (season 8 ) 2017 Great Minds with Dan Harmon Ludwig van Beethoven Episode: "Ludwig van Beethoven" The Last Man on Earth Rear Admiral Roy Billups Episode: "M.U.B.A.R." 2018 Tenacious D in Post-Apocalypto JB (voice) Main role; also co-creator, director, writer and producer 2020 Happy Happy Joy Joy: The Ren and Stimpy Story Himself Documentary Celebrity Escape Room Himself (host) Television special Home Movie: The Princess Bride [ 7] Dread Pirate Roberts 2 episodes 2021 Waffles + Mochi Himself Episode: "Water" 2022 Big Nate Brad Gunter (voice) Episode: "The Legend of the Gunting" Rick and Morty Lithdor, the Viscount of Venus (voice) Episode: "A Rick in King Mortur's Mort " 2022–2023 Kung Fu Panda: The Dragon Knight Po (voice) Main role; also executive producer 2023 History of the World, Part II Joseph Stalin 2 episodes The Mandalorian Captain Bombardier Episode: "Chapter 22: Guns for Hire " 