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| ปี | เรื่อง | รับบท | หมายเหตุ |
| --- | --- | --- | --- |
| 1995 | A Bucket of Blood | Young man | Television film |
| 1995 | On Our Own | Construction Worker | Episode: "Little Rascals" |
| 1995 | Grace Under Fire | Man at Meeting | Episode: "When It Rains, They Pour" |
| 1995 | Living Single | Roommate from Hell #1 | Episode: "Talk Showdown" |
| 1995–2002 | Saturday Night Live | Various roles | 138 episodes |
| 1997 | Cow and Chicken | Farmer / Astronaut No. 2 (voices) | Episode: "Space Cow/Orthodontic Police" |
| 1997 | The Angry Beavers | Bouncer (voice) | Episode: "Bummer of Love/Food of the Clods" |
| 1998 | Hercules | Geryon (voice) | Episode: "Hercules and the Jilt Trip" |
| 1999 | King of the Hill | Coach Lucas (voice) | Episode: "Three Coaches and a Bobby" |
| 1999 | Happily Ever After: Fairy Tales for Every Child | Mamet the Moocher (voice) | Episode: "Ali Baba and the Forty Thieves" |
| 2000 | Strangers with Candy | Bob Whitely | Episode: "Trail of Tears" |
| 2001 | Family Guy | The Black Knight (voice) | Episode: "Mr. Saturday Knight" |
| 2001 | Undeclared | Dave | Episode: "Addicts" |
| 2001–02 | The Oblongs | Bob Oblong (voice) | 13 episodes |
| 2003 | The Guardian | Attorney Larry Flood | Episode: "All the Rage" |
| 2005 | Saturday Night Live | Host | Episode: "Will Ferrell/Queens of the Stone Age" |
| 2007 | The Naked Trucker and T-Bones Show | Chuck Billson | Episode: "Demo Tape" |
| 2008 | Saturday Night Live Weekend Update Thursday | George W. Bush | Episode: "1.3" |
| 2009 | SpongeBob SquarePants | Himself | Episode: "SpongeBob's Truth or Square" |
| 2009 | Man vs. Wild | Himself | Episode: "Man vs. Wild: The Will Ferrell Special" |
| 2009 | You're Welcome America: A Final Night With George W. Bush | George W. Bush | Television special |
| 2009 | Saturday Night Live | Host | Episode: "Will Ferrell/Green Day" |
| 2009–12 | Eastbound & Down | Ashley Schaeffer | 5 episodes; also executive producer |
| 2010 | Tim and Eric Awesome Show, Great Job! | Donald Mahanahanr | Episode: "Stuntmen" |
| 2010–11 | Funny or Die Presents | Grant Measum, Will | 2 episodes; also co-creator and executive producer |
| 2010–12 | 30 Rock | Shane Hunter | 3 episodes |
| 2011 | The Office | Deangelo Vickers | 4 episodes |
| 2011 | 2011 MTV Video Music Awards | Future Ad-Rock | Television special |
| 2012 | Saturday Night Live | Host | Episode: "Will Ferrell/Usher" |
| 2012–13 | Conan | Ron Burgundy | 3 episodes |
| 2013 | Jimmy Kimmel Live! | Ron Burgundy | Episode: "11.94" |
| 2014 | The Spoils of Babylon | Eric Jonrosh | 6 episodes; also executive producer |
| 2014 | @midnight | Chad Softwick | Episode: "2.34" |
| 2014 | Welcome to Sweden | Himself | Episode: "Learn the Language" |
| 2015 | Comedy Central Roast of Justin Bieber | Ron Burgundy | Television special |
| 2015 | A Deadly Adoption | Robert Benson | Television film |
| 2015 | The Spoils Before Dying | Eric Jonrosh | 6 episodes; also executive producer |
| 2015 | Drunk History | Roald Dahl | Episode: "Spies"; also executive producer |
| 2015 | The Last Man on Earth | Gordon Vanderkruik | Episode: "The Boo" |
| 2015 | The Chris Gethard Show | Himself | Episode: "Speed Weddings"; also executive producer |
| 2015 | Ferrell Takes the Field | Himself | Television special |
| 2016–present | Commander Chet | Chet Foster (voice) | Lead role |
| 2016 | The Jim Gaffigan Show | Himself | 2 episodes |
| 2017 | Throwing Shade | Murph | Episode: "#1.1" |
| 2017 | Not the White House Correspondents’ Dinner | George W. Bush | Special episode of Full Frontal with Samantha Bee |
| 2017 | No Activity | Adrian | 3 episodes; also executive producer |
| 2018 | The 2018 Rose Parade Hosted by Cord & Tish | Cord Hosenbeck | Amazon Video coverage |
| 2018 | LA to Vegas |  — | Executive producer |
| 2018 | Saturday Night Live | Host | Episode: "Will Ferrell/Chris Stapleton" |
| 2018 | Succession |  — | Executive producer |