A graduate of the University of Southern California, Will Ferrell became interested in performing while a student at University High School in Irvine, California, where he made his school's daily morning announcements over the public address system in disguised voices. He started as a member of the Los Angeles comedy/improvisation group The Groundlings, where fellow cast members Ana Gasteyer, Maya Rudolph and former Saturday Night Live repertory players such as Laraine Newman, Jon Lovitz and Phil Hartman began their careers. It was there he met Chris Kattan and the two became good friends and both went on to Saturday Night Live later. He has also appeared on several television programs, including Strangers with Candy, Grace Under Fire and Living Single during his time at The Groundlings. Will also lent his voice to the armless and legless dad of cartoon family The Oblongs.

In 1995 he became a feature cast member at Saturday Night Live during the show's rapid re-casting. He was declared quite possibly the worst cast member ever during his first season. However, his talents of impersonations and range of characters shot him forward to making him arguably the greatest Saturday Night Live cast member ever. During his seven year run he is one of the few cast members to ever be nominated for an Emmy for a performance and played George W. Bush during the 2000 elections. He's appeared in every Saturday Night Live movie since his premiere on the show in 1995. In 2002 he left  Saturday Night Live and was the only cast member to ever receive a farewell from all the current cast members at the end of the season finale show. Since leaving the show Will has pursued a career in films. In 2000 he married and now lives in L.A.

1997: Mustafa - Austin Powers: International Man of Mystery
2006: Harold Crick - Stranger Than Fiction
2001: Federal Wildlife Marshal Willenholly - Jay and Silent Bob Strike Back
2003: Buddy - Elf
2003: Frank - Old School
2004: Ron Burgundy - Anchorman: The Legend of Ron Burgundy
2008: Brennan Huff - Step Brothers
2005: Dave - The Wendell Baker Story
2004: Big Earl - Starsky & Hutch
2001: Jacobim Mugatu - Zoolander
1998: Steve Butabi - A Night at the Roxbury
2005: Chazz Reinhold - Wedding Crashers
2004: Hobie - Melinda and Melinda
2006: Ricky Bobby - Talladega Nights: The Ballad of Ricky Bobby
2005: Jack Wyatt - Bewitched
2005: Franz Liebkind - The Producers
2007: Chazz Michael Michaels - Blades of Glory
2004: Ron Burgundy - Wake Up, Ron Burgundy: The Lost Movie
2008: Jackie Moon - Semi-Pro
2010: Detective Allen Gamble - The Other Guys
2005: Phil Weston - Kicking & Screaming
1999: Sky Corrigan - Superstar
2006: Corbit - Winter Passing
2007: Tenant - The Landlord
2010: Megamind (voice) - Megamind
2009: George W. Bush - Will Ferrell: You're Welcome America - A Final Night with George W. Bush
2011: Nick Halsey - Everything Must Go
1999: Bob Woodward - Dick
2000: Lance DeLune - The Ladies Man
2009: Dr. Rick Marshall - Land of the Lost
2012: Armando Alvarez - Casa De Mi Padre
2009: McDermott - The Goods: Live Hard, Sell Hard
2011: Megamind - Megamind: The Button of Doom
2012: Cam Brady - The Campaign
2012: Damien Weebs - Tim and Eric's Billion Dollar Movie
2013: Ron Burgundy - Anchorman 2: The Legend Continues
2004: Saturday Night Live: The Best of Will Ferrell - Volume 2
2013: Kevin - The Internship
2002: Himself / Various Characters (archive footage) - Saturday Night Live: The Best of Will Ferrell
2014: Lord Business / President Business / The Man Upstairs (voice) - The Lego Movie
2007: Bob - The Procedure
2005: Saturday Night Live: The Best of Jimmy Fallon
2006: Saturday Night Live: The Best of Commercial Parodies
2015: James - Get Hard
1999: Mustafa - Austin Powers: The Spy Who Shagged Me
2016: Jacobim Mugatu - Zoolander 2
1998: Troy - Saturday Night Live: The Best of Phil Hartman
1998: Herself / Nancy Reagan / Various Characters - Saturday Night Live: The Best of Phil Hartman
2015: Ron Burgundy - Comedy Central Roast of Justin Bieber
2015: Robert Benson - A Deadly Adoption
2003: Himself - Saturday Night Live: The Best of Chris Kattan
2015: Himself - Ferrell Takes the Field
2015: Brad Whitaker - Daddy's Home
2015: Himself - Saturday Night Live 40th Anniversary Special
2001: Self - Saturday Night Live: The Best of Molly Shannon
2017: Brad Whitaker - Daddy's Home 2
2018: Sherlock Holmes - Holmes & Watson
2006: Ted - Man with the Yellow Hat (voice) - Curious George
2017: Scott Johansen/The Butcher - The House
Rondell - Zeroville
Russ Meyer - Russ & Roger Go Beyond
1995: Newscaster (uncredited) - Criminal Hearts
2000: Drowning Mona
2011: Fight for Your Right Revisited
1999: Gil - The Suburbans
2004: Oh, What a Lovely Tea Party
2009: SNL Presents: A Very Gilly Christmas
1995: A Bucket of Blood
1998: The Thin Pink Line
1997: Men Seeking Women
Larry's Kidney
2007: Angel - Good Cop, Baby Cop
2016: Narrator - A.C. Green: Iron Virgin
2002: Michael, Brian's Boyfriend (uncredited) - Boat Trip
2009: Bat Fight with Will Ferrell
2018: Cord Hosenbeck - The 2018 Rose Parade Hosted by Cord & Tish
2018: Cord Hosenbeck - The Royal Wedding Live with Cord and Tish!
2001: The Concert for New York City
The Prince of Fashion
2019: Cord Hosenbeck - The 2019 Rose Parade with Cord & Tish
2019: President Business (voice) / Dad - The Lego Movie 2: The Second Part

2003: The Ellen DeGeneres Show
2003: Jimmy Kimmel Live!
2006: The One Show
1952: Today
1983: Live with Regis and Kathie Lee
1996: The Daily Show with Trevor Noah
2005: The Office
1997: Cow and Chicken
1993: Late Night with Conan O'Brien
2006: 30 Rock
2006: The Megan Mullally Show
1994: Construction Worker - On Our Own
1953: The Academy Awards
1999: The Late Late Show with Craig Kilborn
2013: Roald Dahl - Drunk History
2006: Curious George
2004: Best Week Ever
2007: Donald Mahanahan - Tim and Eric Awesome Show, Great Job!
1999: Family Guy
2001: The Guardian
1999: Strangers with Candy
1992: The Tonight Show with Jay Leno
2002: Ant & Dec's Saturday Night Takeaway
1998: Geryon - Hercules
2001: Bob Oblong - The Oblongs
1999: The Early Show
2002: Himself - HypaSpace
2009: Eastbound & Down
2007: The Naked Trucker and T-Bones Show
1998: TRL
2010: Abraham Lincoln - Funny or Die Presents
2008: Between Two Ferns with Zach Galifianakis
2014: Himself - The Tonight Show Starring Jimmy Fallon
1975: Various - Saturday Night Live
2014: Eric Jonrosh - The Spoils of Babylon
2015: Himself - The Late Late Show with James Corden
2011: Himself - Billy on the Street
2015: Eric Jonrosh - The Spoils Before Dying
2012: Himself - Comedians in Cars Getting Coffee
2007: Himself - The Graham Norton Show
1975: Himself - Host - Saturday Night Live
2005: The Reichen Show
2017: Adrian - No Activity