| — | Inner Space | Narrator |
| — | Aliens Among Us | Himself |
| 2024 | The UnXplained: Mysteries of the Universe | Self - Presenter |
| 2024 | The D-Con Chamber | Self |
| — | Keeper of the Cup | |
| 2023 | Stars on Mars | Self - Host |
| 2023 | Dick Van Dyke: 98 Years of Magic | Self |
| 2023 | The UnXplained Special Presentation | Self - Presenter |
| 2023 | Full Moon's Roadshow Revisited | Self (archive footage) |
| 2022 | Piers Morgan Uncensored | Self |
| 2022 | Sunday with Laura Kuenssberg | Self |
| 2021 | WWE Hall Of Fame 2020 | Himself |
| 2019 | WWE Backstage | William Shatner |
| 2016 | When Elephants Were Young | Narrator |
| 2016 | The Colorful Montreal Expos | Narrator (voice) |
| 2016 | Unlocked: The World of Games, Revealed | Self |
| 2014 | A Star Is Drawn: Rob Simone's Look Inside Comic-Con | Self |
| 2013 | The Captains: Still Kicking | Himself |
| 2012 | Horrorween | Himself |
| 2012 | Gotham Comedy Live | Self - Host |
| 2011 | William Shatner Sings O Canada | Himself |
| 2011 | Life Beyond Trek: William Shatner | |
| 2011 | Billy Blackburn's Treasure Chest: Rare Home Movies and Special Memories | |
| 2010 | The Fran Drescher Show | |
| 2010 | Charles Beaumont: The Short Life of Twilight Zone's Magic Man | Self |
| 2010 | Aftermath with William Shatner | Self - Host |
| 2008 | Shatner's Raw Nerve | Self - Host |
| 2008 | Million Dollar Password | |
| 2008 | Extraordinary Animals | |
| 2006 | Show Me the Money | |
| 2006 | William Shatner in Concert | Self |
| 2005 | Last Laugh '05 | Lucifer |
| 2005 | Invasion Iowa | Col. Shane Yeager |
| 2004 | Sci-Fi Visionaries | |
| 2004 | Kiss 'N' Tell: Romance in the 23rd Century | |
| 2004 | Birth of a Timeless Legacy | |
| 2004 | Last Laugh '04 | Self |
| 2004 | The Rose Parade: A Pageant for the Ages | Self |
| 2003 | Chilly Beach | The President |
| 2003 | Christmas in Hollywood | Self (archive footage) |
| 2003 | Comedy Central Roasts | Self |
| 2002 | Star Wars vs. Star Trek: The Rivalry Continues | Self |
| 2002 | Christopher Plummer: A Man For All Stages | Self |
| 2002 | After They Were Famous | Self |
| 2002 | NBC 75th Anniversary Special | Self |
| 2002 | Odisea Cosmica | |
| 2002 | One-Hit Wonders | |
| 2001 | Festival in Cannes | Self |
| 2001 | Remembering 'The Intruder' | Himself |
| 2001 | NASA: A Space Odyssey Vol. 1 | Narrator |
| 2001 | NASA: A Space Odyssey Vol. 3 | Narrator |
| 2001 | NASA: A Space Odyssey Vol. 2 | Narrator |
| 2001 | Gahan Wilson's The Kid | Professor |
| 1998 | Hollywood Ghost Stories | Himself |
| 1997 | Space Cadets | Self |
| 1994 | UFO Cover-Up Live with Larry King | Self |
| 1994 | Science Fiction: A Journey Into the Unknown | |
| 1994 | William Shatner: Captain's Log | Self |
| 1994 | Janek: The Silent Betrayal | Bodosh |
| 1993 | Your Guide to Star Trek: Generations | Self |
| 1990 | Amazon: Land of the Flooded Forest | Narrator |
| 1989 | Hollywood on Horses | Self |
| 1987 | Seasons | Narrator (voice) |
| 1986 | The Canadian Conspiracy | |
| 1986 | Super Duper Bloopers | Himself |
| 1985 | North Beach and Rawhide | Rawhide MacGregor |
| 1983 | Prime Times | Self |
| 1982 | Night of 100 Stars | Self |
| 1980 | Hypnosis and Beyond | Himself |
| 1978 | The Crash of Flight 401 | Carl Tobias |
| 1978 | The Third Walker | Munro Maclean |
| 1977 | The Oregon Trail | |
| 1976 | Microworld | |
| 1976 | A Whale of a Tale | Jack Fredericks |
| 1976 | Perilous Voyage | Steve Monroe |
| 1975 | The Star Trek Dream | Self |
| 1975 | Barbary Coast | Jeff Cable |
| 1974 | Amy Prentiss | |
| 1974 | Kodiak | Buzz Howard |
| 1974 | Indict and Convict | Sam Belden |
| 1974 | Flick Flack | Host |
| 1973 | Incident on a Dark Street | Deaver G. Wallace |
| 1969 | Shadow Game | |
| 1967 | Off to See the Wizard | Alexander the Great |
| 1966 | CBS Playhouse | |
| 1965 | For the People | David Koster |
| 1964 | The Reporter | Horner |
| 1963 | Channing | Tom Ericson |
| 1963 | Arrest and Trial | Larry Tavener |
| 1960 | Outlaws | |
| 1960 | Insight | Mike Burnett |
| 1960 | Police Surgeon | Joe Flatt |
| 1959 | City Out of Time | Narrator (voice) |
| 1958 | The Christmas Tree | Philo |
| 1957 | The Defender (Studio One) | Kenneth Preston |
| 1953 | Space Command | |
| 1952 | Omnibus | |
| 1951 | The Butler's Night Off | |
| 1948 | Lamp Unto My Feet | |
| 1947 | Kraft Television Theatre | |
| — | Click | |
| 2018 | The Steam Engines of Oz | Oscar "Oz" Diggs (voice) |
| 2017 | Not a War Story | |
| 2016 | They Came from the Swamp: The Films of William Grefé | Himself (voice only) |
| 2016 | Star Trek: Inside the Roddenberry Vault | Self |
| 2015 | WWE Breaking Ground | Himself (narrator) |
| 2013 | The Captains Close Up | Self |
| 2008 | Everest | Norman Kelly |
| 2007 | WWE: The Best of Raw 15th Anniversary | Himself |
| 2007 | Rumbo a Marte | Narrator (voice) |
| 2006 | The Henry Rollins Show | |
| 2006 | 40 Years of Star Trek | Self |
| 2005 | Lil' Pimp | Tony Gold (voice) |
| 2005 | The Reichen Show | Self - Guest |
| 2004 | The Tony Danza Show | Self - Guest |
| 2004 | Best Week Ever | |
| 2001 | Bob Patterson | Warren Wellman |
| 2001 | Good Day Live | Self |
| 1999 | A Twist in the Tale | |
| 1997 | Perversions of Science | Admiral Kornfeld |
| 1996 | Star Trek: 30 Years and Beyond | Self |
| 1995 | William Shatner's Star Trek Memories | Host |
| 1994 | Star Trek: A Captain's Log | Himself/Host |
| 1993 | Family of strangers | Earl |
| 1991 | Star Trek: 25th Anniversary Special | Self - Host |
| 1988 | The Star Trek Saga: From One Generation to the Next | Self |
| 1988 | Broken Angel | Chuck Coburn |
| 1985 | Night of 100 Stars II | Self |
| 1982 | Madame's Place | Self |
| 1978 | Mujercitas | Friedrich Bhaer |
| 1978 | El bastardo | Paul Revere |
| 1976 | Battle of the Network Stars | |
| 1972 | The Sixth Sense | |
| 1971 | Vanished | Dave Paulick |
| 1968 | Alexander The Great | Alexander |
| 1963 | La hora de los famosos | |
| 1963 | Miss USA | Self - Host |
| 1961 | Los defensores | Assistant District Attorney Earl Rhodes |
| 1961 | The Mike Douglas Show | Self |
| 1961 | El show de Dick Powell | Eric Tegman |
| 1958 | Naked City | Maung Tun |
| 1957 | Oedipus Rex | Chorus |
| 1957 | Las cuatro en punto | Eli |
| 1951 | Hallmark Hall of Fame | Philo |
| — | Have I Got a Bit More News for You | Self - Presenter |
| 2024 | Masters del Universo: Revolución | Keldor (voice) |
| — | The Atomic Bomb Collection | Narrator |
| 2024 | William Shatner: You Can Call Me Bill | Self |
| 2022 | A Tear in the Sky | |
| 2022 | Fireheart | Mayor of New York (voice) |
| 2021 | Shatner in Space | Self |
| 2021 | 2021 and Done with Snoop Dogg & Kevin Hart | Self |
| 2021 | Expedition Unknown: Shark Trek | Self |
| 2021 | Senior Moment | Victor Martin |
| 2020 | Creators: The Past | Lord Oghma |
| 2019 | Mask Singer: Adivina quién canta (Estados Unidos) | Knight |
| 2019 | Mask Singer: Adivina quién canta (Estados Unidos) | Knight (archive footage) |
| 2019 | El programa de Kelly Clarkson | Self |
| 2019 | Hasta tu última muerte | The Overseer (voice) |
| 2019 | My Life Is Murder | Barton Wallwork |
| 2019 | Lo inexplicable | Self - Host |
| 2019 | Devil's Revenge | Hayes |
| 2018 | Star Trek: Short Treks | Capt. James T. Kirk (voice) (archive footage) |
| 2018 | Aliens Ate My Homework | Phillogenus esk Piemondum (Phil) (voice) |
| 2017 | Heroes Manufactured | Self (archive footage) |
| 2017 | Batman Vs. Dos Caras | Harvey Dent / Two-Face (voice) |
| 2017 | The Indian Detective | David Marlowe |
| 2017 | The Truth Is in the Stars | Self |
| 2016 | Las crónicas de Shannara | Captain Kirk (archive footage) |
| 2016 | Por el amor de Spock | Self |
| 2016 | Private Eyes | Norm Glinski |
| 2016 | A Sunday Horse | Kenneth Roubidoux |
| 2016 | Range 15 | Richard Chindler |
| 2016 | Better Late Than Never | Self |
| 2016 | Koko: The Gorilla Who Talks to People | Self |
| 2015 | A Christmas Horror Story | Dangerous Dan |
| 2015 | Justo a Tiempo para Navidad | Coachman Nick |
| 2015 | Being Canadian | Self |
| 2015 | Baby, Baby, Baby | Actor |
| 2015 | StarTalk with Neil deGrasse Tyson | Self |
| 2015 | Tom Felton Meets the Superfans | Self |
| 2014 | To Be Takei | Self |
| 2014 | Last Week Tonight with John Oliver | Self |
| 2014 | Chaos on the Bridge | Self |
| 2014 | La verdadera historia de la ciencia ficción | Self |
| 2013 | Operación escape | General Shanker (voice) |
| 2013 | Kelly Clarkson's Cautionary Christmas Music Tale | Self |
| 2012 | Get a Life! | Himself |
| 2012 | Comic Book Men | Self |
| 2011 | The Captains | Himself |
| 2011 | El mundo de Roger Corman | Self - Actor |
| 2011 | The Space Shuttle | Narrator |
| 2011 | Classic TV Bloopers Uncensored | Himself |
| 2011 | Comedy Central Roast of Charlie Sheen | Self - Roaster |
| 2010 | Quantum Quest: A Cassini Space Odyssey | Core (voice) |
| 2010 | My Little Pony: La magia de la amistad | Grand Pear (voice) |
| 2010 | Haven | Croatoan |
| 2010 | Rookie Blue | Henry McLeod |
| 2010 | Póquer de reinas | Sally |
| 2010 | $#*! My Dad Says | Dr. Edison Milford Goodson III |
| 2010 | The Talk | |
| 2010 | Weird or What? | |
| 2009 | Fanboys | Himself |
| 2009 | The Captain's Summit | Self |
| 2009 | William Shatner's Gonzo Ballet | Himself |
| 2008 | Hay que pillar a Papá Noel | Santa Claus (voice) |
| 2008 | Los misterios de Murdoch | Mark Twain |
| 2007 | Big Bang | William Shatner |
| 2007 | La historia de Pixar | James T. Kirk (archive footage) |
| 2006 | Vecinos invasores | Ozzie (voice) |
| 2006 | Salvaje (The Wild) | Kazar (voice) |
| 2006 | Stalking Santa | Narrator |
| 2006 | Psych | Frank O'Hara |
| 2006 | Comedy Central Roast of William Shatner | Self |
| 2005 | Miss Agente Especial 2: Armada y fabulosa | Stan Fields |
| 2005 | How William Shatner Changed The World | Self - Host / Narrator (voice) |
| 2005 | Merry F#%$in' Christmas | Self |
| 2005 | Pesadilla en la cocina | Self |
| 2005 | The Colbert Report | |
| 2005 | The Late Late Show with Craig Ferguson | Self |
| 2004 | Cuestión de pelotas | Dodgeball Chancellor |
| 2004 | Boston Legal | Denny Crane |
| 2004 | Betty Atómica | Jim |
| 2003 | A Carol Christmas | Dr. Bob / Ghost of Christmas Present |
| 2003 | Halloween: A Cut Above the Rest | Self (archive footage) (uncredited) |
| 2003 | Real Time with Bill Maher | Self |
| 2003 | The Ellen DeGeneres Show | Self |
| 2003 | Jimmy Kimmel Live! | |
| 2003 | Jimmy Kimmel Live! | Self |
| 2003 | Late Night with Conan O'Brien: 10th Anniversary Special | Self |
| 2002 | Showtime | William Shatner |
| 2002 | American Psycho 2: El Legado De Patrick Bateman | Robert Starkman |
| 2002 | Groom Lake | John Gossner |
| 2002 | Shoot or Be Shot! | Harvey Wilkes |
| 2002 | Spplat Attack | |
| 2001 | Proyecto Falcon | Major Robert Carson |
| 2001 | Mind Meld: Secrets Behind the Voyage of a Lifetime | Himself |
| 2001 | Whale Shark Hunters of the Philippines | Self |
| 2001 | Osmosis Jones | Mayor Phlegmming (voice) |
| 2000 | Miss Agente Especial | Stan Fields |
| 2000 | Atomic Journeys: Welcome to Ground Zero | Narrator (Voice) |
| 1999 | Nukes in Space | Narrator |
| 1999 | Futurama | William Shatner (voice) |
| 1999 | The Late Late Show with Craig Kilborn | Self - Guest |
| 1998 | Free Enterprise | Bill |
| 1998 | Hércules | Jason of the Argonauts (voice) |
| 1998 | Saturday Night Live: The Best of Phil Hartman | James T. Kirk |
| 1998 | Land of the Free | Aidan Carvell |
| 1997 | Trekkies | Self |
| 1997 | Jefftowne | Himself |
| 1997 | El abogado | Denny Crane |
| 1997 | The View | Self |
| 1997 | The View | Self - Guest |
| 1996 | The Prisoner of Zenda, Inc. | Michael Gatewick |
| 1996 | Dead Man's Island | Chase Prescott |
| 1996 | Star Trek Story | Self (archive footage) |
| 1996 | Cosas De Marcianos | Big Giant Head |
| 1996 | E! True Hollywood Story | Self |
| 1996 | Muppets Tonight | Self |
| 1995 | Trinity and Beyond: The Atomic Bomb Movie | Narrator |
| 1994 | Star Trek VII: La próxima generación | Captain James T. Kirk |
| 1994 | TekWar: TekJustice | Walter H. Bascom |
| 1994 | TekWar: TekLab | Walter H. Bascom |
| 1994 | TekWar: TekLords | Walter H. Bascom |
| 1994 | El tesoro de Curly | Adam Harland (uncredited) |
| 1994 | El fantasma del Espacio de costa a costa | |
| 1994 | TekWar | Walter H. Bascom |
| 1994 | TekWar | Walter H. Bascom |
| 1993 | Con el arma a punto | General Mortars |
| 1993 | WWE Raw | |
| 1993 | WWE Raw | William Shatner |
| 1993 | Late Night with Conan O'Brien | Self - Guest |
| 1993 | SeaQuest DSV | Milos Tezlof |
| 1992 | Boomerang (El príncipe de las mujeres) | Captain James Tiberius Kirk (archive footage) |
| 1992 | Eek! The Cat | Santa Claus (voice) |
| 1992 | Eek! The Cat | Commander Berzerk (voice) |
| 1992 | The Tonight Show with Jay Leno | |
| 1992 | The Larry Sanders Show | William Shatner |
| 1991 | Star Trek VI: Aquel país desconocido | Captain James T. Kirk |
| 1991 | Voices That Care | Self - Choir Member |
| 1990 | El príncipe de Bel-Air | Himself |
| 1990 | Sigue soñando | |
| 1989 | Star Trek V: La última frontera | Captain James T. Kirk |
| 1989 | Rescue 911 | Host |
| 1988 | LIVE with Kelly and Mark | |
| 1986 | Star Trek IV: Misión salvar la Tierra | Admiral James T. Kirk |
| 1986 | William Shatner's Mysteries of the Way We Feel | Host |
| 1985 | Hollywood's Funniest All-Star Bloopers | Self (archive footage) |
| 1985 | The Ray Bradbury Theater | Charles Underhill |
| 1984 | Star Trek III: En busca de Spock | Admiral James T. Kirk |
| 1984 | Chantaje a un marido | Chris Jordan |
| 1982 | Star Trek II: La ira de Khan | Admiral James T. Kirk |
| 1982 | Aterriza como puedas 2 | Cdr. Buck Murdock |
| 1982 | Angustia en el Hospital Central | Gary Baylor |
| 1982 | Police Squad! | Poisoned Man |
| 1982 | T. J. Hooker | Sgt TJ Hooker |
| 1982 | Late Night with David Letterman | Self |
| 1980 | El secuestro del presidente | Jerry O'Connor |
| 1980 | The Babysitter | Dr. Jeff Benedict |
| 1979 | Star Trek: La película | Admiral James T. Kirk |
| 1979 | Desastre en el tren de la costa | Stuart Peters |
| 1978 | Land of No Return | Curt Benell |
| 1977 | Tarántula | Dr. Robert 'Rack' Hansen |
| 1977 | La conquista del oeste | Captain Harrison |
| 1976 | El mensaje de los dioses | Host |
| 1976 | The Tenth Level | Prof. Stephen Turner |
| 1976 | Universe | Narrator |
| 1975 | La lluvia del diablo | Mark Preston |
| 1975 | Mitzi & 100 Guys | Self |
| 1975 | Saturday Night Live | Self - Host |
| 1975 | Saturday Night Live | Self - Cameo (uncredited) |
| 1974 | Una mamá sin freno | William J. Baxter |
| 1974 | Impulse | Matt Stone |
| 1974 | Pray for the Wildcats | Warren Summerfield |
| 1974 | El hombre de los seis millones de dólares | Josh Lang |
| 1974 | La mujer policia | |
| 1974 | La mujer policia | Mark Ciprio |
| 1974 | Petrocelli | |
| 1973 | The Horror at 37,000 Feet | Paul Kovalik |
| 1973 | Go Ask Alice | Sam |
| 1973 | Pioneer Woman | John Sergeant |
| 1973 | Star Trek: La serie animada | James T. Kirk (voice) |
| 1973 | Barnaby Jones | Phil Carlyle / Fred Williams |
| 1973 | Police Story | |
| 1973 | El Mago | Ed Cassidy |
| 1972 | Hogar perdido | Dr. Curtis |
| 1972 | El sabueso de los Baskerville | George Stapleton |
| 1972 | Kung Fu | |
| 1972 | The Rookies | |
| 1971 | Colombo | Ward Fowler |
| 1971 | Colombo | Fielding Chase |
| 1970 | Sole Survivor | Lt. Col. Josef Gronke |
| 1970 | The Andersonville Trial | Col. Chipman |
| 1970 | Swing Out, Sweet Land | John Adams |
| 1968 | Comanche blanco | Johnny Moon / Notah |
| 1968 | Hawaii 5-0 | Sam Tolliver |
| 1968 | The Name of the Game | Peter |
| 1967 | Ironside | |
| 1967 | Ironside | Bill Parkins |
| 1967 | Ironside | Marty Jessup |
| 1967 | Mannix | |
| 1966 | Incubus | Marc |
| 1966 | Star Trek | James T. Kirk |
| 1966 | Misión: imposible | Joseph Conrad |
| 1965 | The Big Valley | Brett |
| 1965 | The F.B.I. | Arthur Majors |
| 1964 | Cuatro confesiones | Preacher |
| 1964 | El agente de CIPOL | |
| 1963 | Operation Bikini | Narrator (voice) (uncredited) |
| 1963 | Más allá del límite | Gen. Jeff Barton |
| 1963 | El fugitivo | Tony Burrell |
| 1963 | El agente Burke | Arthur Reynolds |
| 1962 | El intruso (The Intruder) | Adam Cramer |
| 1962 | The Tonight Show Starring Johnny Carson | Self |
| 1962 | El virginiano | Luke Milford |
| 1961 | ¿Vencedores o vencidos? (El juicio de Nuremberg) | Harrison Byers |
| 1961 | The Explosive Generation | Peter Gifford |
| 1961 | Dr. Kildare | Dr. Toby Cunningham |
| 1961 | Dr. Kildare | Dr. Carl Noyes |
| 1961 | Los defensores | Jim McCleery |
| 1961 | Los defensores | Charles Terranova |
| 1961 | Los defensores | Cliff Sellers |
| 1961 | Los defensores | Gil Rawson |
| 1960 | Route 66 | |
| 1960 | Thriller | Gil Thrasher |
| 1960 | Thriller | Paul Graves |
| 1959 | La dimensión desconocida | Bob Wilson |
| 1959 | La dimensión desconocida | Don Carter |
| 1959 | Un paso al más allá | Carl Bremer |
| 1958 | Los hermanos Karamazov | Alexi Karamazov |
| 1958 | A Town Has Turned to Dust | Jerry Paul |
| 1958 | 77 Sunset Strip | Paul DeVinger |
| 1958 | Naked City | Roger Barmer |
| 1955 | Alfred Hitchcock presenta | Jim Whitely |
| 1955 | Alfred Hitchcock presenta | John Crane |
| 1955 | Gunsmoke | Fred Bateman |
| 1954 | Climax! | Ben Tate |
| 1953 | The Oscars | James T. Kirk |
| 1948 | The Ed Sullivan Show | |
| 1948 | The Ed Sullivan Show | Robert Lomax |
| 1948 | Studio One | Dr. David Coleman |
| 1948 | Studio One | Kenneth Preston |
| 1948 | Studio One | Dr. Franck |
| 1944 | Premios Globo de Oro | Self - Host |
