| 2024 | Holiday Touchdown: A Chiefs Love Story | — |
| 2024 | Strange Darling | Frederick |
| 2024 | In the Kitchen with Harry Hamlin (serie) | Self |
| 2023 | Casi muertos (La muerte puede esperar) (serie) | Bill |
| 2022 | Queer as Folk (serie) | Winston |
| 2021 | Mr. Mayor (serie) | Chet Danville |
| 2020 | Querida Navidad | Randy Morgan |
| 2020 | Reboot Camp | John Lehman |
| 2020 | Michael Des Barres: Who Do You Want Me To Be? | Self |
| 2019 | Human Discoveries (serie) | Marsh (voice) |
| 2019 | Dos mejor que uno | Chuck King |
| 2019 | Bless This Mess (serie) | Rudy |
| 2019 | Making Babies | Dr. Remis |
| 2019 | El Agente Secreto de Bixler | Charlie DeWitt |
| 2018 | The Cool Kids (serie) | Karl |
| 2018 | Los Green en la gran ciudad (serie) | Mr. Whistler (voice) |
| 2017 | And the Winner Isn't | Self |
| 2017 | Future Man (serie) | Gabe Futturman |
| 2017 | Lucky | Dr. Kneedler |
| 2017 | El joven Sheldon (serie) | Grant Linkletter |
| 2017 | Amelia 2.0 | Paul Wesley |
| 2016 | Imperfections | Barry |
| 2016 | Vegan: Everyday Stories | Himself |
| 2016 | Bad Internet (serie) | — |
| 2016 | Chelsea (serie) | Self |
| 2016 | Ed Ruscha: Buildings and Words | Self |
| 2016 | Un futuro muy presente | Wiz |
| 2016 | Angie Tribeca (serie) | Bonnie |
| 2015 | Clint Howard Reboots Pippi Longstocking with Milla Jovovich and Fred Willard | Ed |
| 2015 | Grace y Frankie (serie) | Mark |
| 2015 | Your Family or Mine (serie) | Gil |
| 2015 | Better Call Saul (serie) | Clifford Main |
| 2014 | Wish Wizard | Wish Wizard |
| 2014 | Little Women Big Cars 2 | Principle Larry |
| 2013 | How to Succeed at Birth | Dr. Finch |
| 2013 | El gran combate de Muhammad Ali | Justice Harry Blackmun |
| 2013 | Beverly Hills Pawn (serie) | Self |
| 2013 | Betas (serie) | Murch |
| 2012 | Common Law (serie) | Dr. Van Waals |
| 2011 | Dime con cuántos | Mr. Darling |
| 2011 | Finales felices (serie) | Ed Begley Jr. |
| 2011 | Portlandia (serie) | Dr Ravich |
| 2010 | What is the Electric Car? | Himself |
| 2010 | Hope (serie) | Ed Begley Jr. |
| 2010 | Historias corrientes (serie) | William (voice) |
| 2010 | Rizzoli & Isles (serie) | Dr. T. Pike |
| 2010 | Póquer de reinas (serie) | Yogi |
| 2009 | Big Time Rush (serie) | Self |
| 2009 | Modern Family (serie) | Jerry |
| 2009 | Georgia O'Keeffe | Dr. Lee Steiglita |
| 2009 | The Jay Leno Show (serie) | Self |
| 2009 | Si la cosa funciona | John |
| 2009 | Tripping Forward | James |
| 2009 | Party Down (serie) | Bruce Nesbitt |
| 2009 | Secreto inconfesable | Reverend Vernon |
| 2008 | Childrens Hospital (serie) | Senator Throman |
| 2008 | Zack y Cody: Todos a bordo (serie) | Mayor Ragnar / Ragnar I |
| 2008 | Gary Unmarried (serie) | Walter Krandall |
| 2008 | Easy to Assemble (serie) | — |
| 2008 | Vamos a la Luna | Poopchev (voice) |
| 2008 | Buscando a Amanda | Self |
| 2008 | Recuento | David Boies |
| 2008 | Going To Whatstock? | — |
| 2007 | Hard Four | Governor Begley |
| 2007 | One Long Night | Joel |
| 2007 | Tim and Eric Awesome Show, Great Job! (serie) | Self |
| 2007 | Reglas de compromiso (serie) | Reverend Todd |
| 2006 | Pittsburgh | Self |
| 2006 | ¿Quién mató al coche eléctrico? | Self |
| 2006 | Hannah Montana (serie) | Woody |
| 2006 | The New Adventures of Old Christine (serie) | Pastor Ed |
| 2005 | Spirit Bear: The Simon Jackson Story | Frank Perdue |
| 2005 | Desolation Sound | Doug Shepard |
| 2005 | The Office (serie) | Erin's Biological Father |
| 2005 | Back By Midnight | Robert Wade |
| 2004 | Center of the Universe (serie) | — |
| 2004 | Boston Legal (serie) | Clifford Cabot |
| 2004 | Veronica Mars (serie) | Cyrus O'Dell |
| 2004 | Jack & Bobby (serie) | — |
| 2004 | Raising Genius | Dr. Curly Weeks |
| 2004 | Hospital Kingdom (serie) | Dr. Jesse James |
| 2004 | Life on Liberty Street | Richard Spencer |
| 2003 | Arrested Development (serie) | Stan Sitwell |
| 2003 | Las Vegas (serie) | — |
| 2003 | American party | Oscar Earnest |
| 2003 | Real Time with Bill Maher (serie) | Self |
| 2003 | War Stories | Ed O'Brian |
| 2002 | Desenfocado | Mel Rosen |
| 2002 | CSI: Miami (serie) | Scott O'Shay |
| 2002 | Monk (serie) | Dr. Malcolm Nash |
| 2001 | Diario de un adicto al sexo | Dr. Aaron Spencer |
| 2001 | Scrubs (serie) | Dr. Bailey |
| 2001 | A dos metros bajo tierra (serie) | Hiram Gunderson |
| 2001 | Con un chucho en los talones | Ward Van Dusen |
| 2001 | Antrax | Brent Krawford |
| 2000 | The Michael Richards Show (serie) | Imposter Vic |
| 2000 | Larry David (serie) | Dr. Winocur / Dr. Winokur |
| 2000 | Gideon's Crossing (serie) | Haley's Father |
| 2000 | Descarga estática (serie) | Donald Todd (voice) |
| 2000 | Titus (serie) | — |
| 2000 | Pigs Next Door (serie) | Bradley |
| 1999 | El ala oeste de la Casa Blanca (serie) | Seth Gillette |
| 1999 | Leyes de familia (serie) | Attorney Ethan Beal |
| 1999 | Batman del futuro (serie) | Dr. Corso (voice) |
| 1999 | Providence (serie) | Chuck Chance |
| 1998 | La familia Addams: La reunión | Phillip Adams |
| 1997 | Joey, un canguro en la ciudad | Ambassador Ted Ross |
| 1997 | Ms. Bear | Greg Bradley |
| 1997 | Dharma & Greg (serie) | Self |
| 1997 | Not in This Town | Henry Whitcomb |
| 1997 | El abogado (serie) | — |
| 1997 | Hourglass | Det. Cecil Dish |
| 1997 | El rey de la colina (serie) | Stephens Davies (voice) |
| 1996 | Menudo Santa Claus | Ebner Frost |
| 1996 | 7 en el paraiso (serie) | Hank Hastings |
| 1996 | Los reyes de la noche | Rod Perth |
| 1996 | Cosas De Marcianos (serie) | Jeff |
| 1995 | The Drew Carey Show (serie) | Dr. Chris Vanderkamp |
| 1995 | Rave Review | Bert |
| 1995 | Star Trek: Voyager (serie) | Henry Starling |
| 1994 | The Crazysitter | Paul Van Arsdale |
| 1994 | El Guardián de las Palabras | Alan Tyler |
| 1994 | The Shaggy Dog | Ron Daniels |
| 1994 | Tocados por un ángel (serie) | Chris Carpenter |
| 1994 | Incident at Deception Ridge | Jack Davis |
| 1994 | El Autobús Mágico (serie) | (voice) |
| 1994 | Un poeta entre reclutas | Jack Markin |
| 1994 | Ellen (serie) | Ed Begley Jr. |
| 1994 | Winnetka Road (serie) | Glenn Barker |
| 1994 | Los codiciosos | Carl |
| 1994 | II Guerra Mundial: Cuando los leones rugieron (serie) | Harry Hopkins |
| 1993 | Intimate Portrait (serie) | Self - Narrator (voice) |
| 1993 | Dave's World (serie) | Watterson |
| 1993 | Cooperstown | Dave Cormeer |
| 1992 | Mastergate | Steward Butler |
| 1992 | La novia del candidato | Chapman Snow |
| 1992 | Mickey's Audition | Assistant Director #1 |
| 1992 | Batman: La Serie Animada (serie) | Germs (voice) |
| 1992 | The Larry Sanders Show (serie) | Ed Begley Jr. |
| 1992 | Caballo negro | Jack Mills |
| 1992 | The Tonight Show with Jay Leno (serie) | — |
| 1992 | Shelley Duvall's Bedtime Stories (serie) | Narrator (Voice) |
| 1992 | In the Line of Duty: Siege at Marion | Lt. Fred House |
| 1991 | La dama de los cuentos | Otis |
| 1991 | Chance of a Lifetime | Darrel |
| 1990 | Estos terrícolas están locos | Richard P. Applegate |
| 1990 | In the Best Interest of the Child | Howard Feldon |
| 1990 | Not a Penny More, Not a Penny Less | Stephen Bradley |
| 1989 | Los Simpson (serie) | Ed Begley Jr. (voice) |
| 1989 | Vida y amores de una diablesa | Bob Patchett |
| 1989 | Historias de la cripta (serie) | Judd Campbell (segment "Death of Some Salesmen") |
| 1989 | Escenas de la lucha de sexos en Beverly Hills | Peter |
| 1989 | The Absent-Minded Professor: Trading Places | Dr. Jack Brooker |
| 1988 | El turista accidental | Charles Leary |
| 1988 | Spies, Lies & Naked Thighs | Alan |
| 1988 | Roseanne (serie) | — |
| 1988 | LIVE with Kelly and Mark (serie) | — |
| 1987 | The Incredible Ida Early | Paul Sutton |
| 1987 | Rip Van Winkle | Brom Dutcher |
| 1986 | Amy Grant: Headin' Home for the Holidays | Self |
| 1986 | Doctor Duck's Super Secret All-Purpose Sauce | Self |
| 1985 | Transylvania 6-5000 | Gil Turner |
| 1985 | Tall Tales & Legends (serie) | Ichabod Crane |
| 1984 | This Is Spinal Tap | John 'Stumpy' Pepys |
| 1984 | Voyager from the Unknown | Wilbur Wright |
| 1983 | An Uncommon Love | Matt Randolph |
| 1983 | Volverse loco | Colin Beverly |
| 1983 | Still the Beaver | Whitey |
| 1982 | St. Elsewhere (serie) | Victor Ehrlich |
| 1982 | Voyagers (serie) | — |
| 1982 | Cuentos de las estrellas (serie) | Brom Dutcher |
| 1982 | El beso de la pantera | Joe Creigh |
| 1982 | Rascals and Robbers: The Secret Adventures of Tom Sawyer and Huck Finn | Jeb |
| 1982 | Tales of the Apple Dumpling Gang | Amos Tucker |
| 1981 | La primera lección | Jack Travis |
| 1979 | A Shining Season | John Haaland |
| 1979 | Tales of the Unexpected (serie) | George Princey |
| 1978 | Galáctica: Estrella de combate (serie) | Flight Sergeant Greenbean |
| 1978 | Blue Collar (Sed de Poder) | Bobby Joe |
| 1978 | Record City | Pokey |
| 1977 | Muerte de noche | Frank |
| 1976 | Quincy, M.E. (serie) | — |
| 1976 | Los ángeles de Charlie (serie) | Kenny Daniels |
| 1976 | Laverne & Shirley (serie) | — |
| 1975 | La mujer maravilla (serie) | Harold Farnum |
| 1975 | Saturday Night Live (serie) | Self - Host |
| 1975 | Starsky y Hutch (serie) | Harv Schwab |
| 1975 | Baretta (serie) | — |
| 1974 | Gallos de pelea | Tom Peeples |
| 1974 | Happy Days (serie) | — |
| 1973 | Roll Out (serie) | — |
| 1973 | The American Film Institute Salute to ... (serie) | Self |
| 1972 | Maude (serie) | Young Man |
| 1971 | Owen Marshall: Counselor at Law (serie) | Howard Dubberly |
| 1971 | Colombo (serie) | Officer Stein |
| 1970 | The Immortal (serie) | — |
| 1969 | Room 222 (serie) | — |
| 1968 | Área 12 (serie) | Bud |
| 1967 | Mannix (serie) | — |
| 1967 | Ironside (serie) | — |
| 1965 | The F.B.I. (serie) | Youngblood |
| 1962 | The Tonight Show Starring Johnny Carson (serie) | Self |
| 1960 | Insight (serie) | Father John |
| 1952 | Today (serie) | Self |
