| 2025 | The Scorpion and the Frog | Narrator (archive footage) |
| 2024 | The Battle of Grovers Mill | Radio Host (voice) (archival footage) |
| 2023 | Othelo, O Grande | Ele Mesmo (Imagem de Arquivo) |
| 2023 | From Introduction to Orson Welles’s Falstaff: Chimes at Midnight | Falstaff |
| 2023 | It's Pretty, but is it Art? | Self (voiceover) |
| 2023 | Looking Back Before You Leap | General Zaroff (voice) |
| 2022 | Clint Eastwood: la última leyenda | Self (archive footage) |
| 2022 | Louis Armstrong's Black & Blues | Self (archive Footage) |
| 2022 | American: An Odyssey to 1947 | Self (archive footage) |
| 2022 | A Jangada de Welles | Himself (Archive Footage) |
| 2021 | Tall Tales: The Ireland of Orson Welles | Self |
| 2020 | Hopper/Welles | Self |
| 2019 | Emergency: Donald Trump’s "Touch of Evil" | (archive footage) |
| 2018 | Me amarán cuando esté muerto | Self (archive footage) |
| 2018 | La mirada de Orson Welles | Self - Filmmaker / Various Roles (archive footage) |
| 2017 | The Magic History of Cinema | — |
| 2016 | Embers & Dust | Professor Richard Pierson / Self (voice) (archive sound) |
| 2015 | Este es Orson Welles | Self |
| 2013 | Too Much Johnson | Keystone Kop |
| 2013 | Talking Pictures (serie) | Self (archive footage) |
| 2010 | Orson Welles: The Paris Interview | Himself |
| 2009 | Lucifer et moi | (archive footage 1982) |
| 2007 | The Deep | Russ Brewer |
| 2005 | Druga strana Wellesa | Self (archive footage) |
| 2005 | Brunnen | — |
| 2004 | The Hitch Hiker | Ronald Adams |
| 2003 | L’Affaire Dominici par Orson Welles | Self (archive footage) |
| 2001 | NASA: A Space Odyssey Vol. 3 | Narrator |
| 2000 | Orson Welles en el país de don Quijote | Self (Archive footage) |
| 1997 | Tudo é Brasil | Self (archive footage) |
| 1995 | Orson Welles: The One-Man Band | Self (archive footage) |
| 1993 | Rosabella - La storia italiana di Orson Welles | — |
| 1993 | Working with Orson Welles | Himself (Archive Footage) |
| 1992 | Don Quijote de Orson Welles | Self |
| 1990 | Star Life (serie) | Self (archive footage) |
| 1990 | With Orson Welles: Stories from a Life in Film | Self (archive footage) |
| 1990 | Rita Hayworth: Dancing Into the Dream | Self (archive footage) |
| 1990 | A Linguagem de Orson Welles | Self (archive footage) |
| 1988 | American Experience (serie) | Self (archive footage) |
| 1988 | On the tracks of a filmmaker | Orson Welles |
| 1986 | Nem Tudo É Verdade | Himself (archive footage) |
| 1986 | Transformers: La película | Unicron (voice) |
| 1985 | Almonds and Raisins | Narrator |
| 1985 | Luz de luna (serie) | Orson Welles |
| 1985 | The Dreamers | Marcus Kleek |
| 1985 | Orson Welles' Magic Show | Self |
| 1984 | The Dean Martin Celebrity Roast: Michael Landon | — |
| 1984 | El camino a Bresson | Self |
| 1984 | The Last Sailors: The Final Days of Working Sail | Narrator |
| 1984 | In Our Hands | Himself |
| 1984 | The Spirit of Charles Lindbergh | himself |
| 1984 | ¿Dónde está Parsifal? | Klingsor |
| 1983 | The Witching | Mr. Cato |
| 1983 | King Penguin: Stranded Beyond the Falklands | Self - Narrator |
| 1983 | Orson Welles à la Cinémathèque française | Himself |
| 1982 | Slapstick (Of Another Kind) | Aliens' Father (voice) |
| 1982 | Wagner e Venezia | Richard Wagner (voice) |
| 1982 | Natalie - A Tribute to a Very Special Lady | Self |
| 1982 | Baryshnikov in Hollywood | Self - Narrator |
| 1982 | Genocide | Narrator (voice) |
| 1982 | Doug Henning's World of Magic | Self - Special Guest |
| 1982 | La marca de la mariposa | Judge Rauch |
| 1982 | Let Poland Be Poland | Self |
| 1982 | Magic with the Stars | Host |
| 1982 | The Quest for Fire Adventure | Narrator |
| 1981 | Search for the Titanic | Himself (host) |
| 1981 | El viaje encantado | Pippo |
| 1981 | The New Deal for Artists | Narrator (voice) |
| 1981 | Tales of the Klondike (serie) | Narrator |
| 1981 | Filming 'The Trial' | Self |
| 1981 | The Man Who Saw Tomorrow | Presenter / Narrator (voice) |
| 1980 | Magnum (serie) | Robin Masters (voice) |
| 1980 | El secreto de Tesla | J.P. Morgan |
| 1980 | A un solo paso | English Narrator |
| 1980 | The Greenstone | Narrator (voice) |
| 1979 | Soft Self-Portrait of Salvador Dali | Narrator |
| 1979 | The New Media Bible: Book of Genesis | Narrator |
| 1979 | To Try Again... and Succeed | Narrator (voice) |
| 1979 | The Double McGuffin | Narrator |
| 1979 | The Orson Welles Show | Self |
| 1978 | A Woman Called Moses (serie) | Narrator (voice) |
| 1978 | The Magic of David Copperfield (serie) | — |
| 1978 | Filming Othello | Host |
| 1978 | The Late Great Planet Earth | Self |
| 1978 | Mysterious Castles of Clay | Narrator |
| 1977 | It Happened One Christmas | Henry F. Potter |
| 1977 | The Lions of Capitalism: Some Call It Greed | Narrator |
| 1977 | The Force Beyond | Himself (archive footage) |
| 1977 | The Rime of the Ancient Mariner | Narrator |
| 1976 | NBC: The First Fifty Years | Self / Narrator |
| 1975 | Bugs Bunny Superstar | Narrator (voice) |
| 1975 | Magnificent Monsters of the Deep | Narrator |
| 1975 | Rikki-Tikki-Tavi | Narrator / Nag / Chuchundra (voice) |
| 1975 | Who's Out There? | Host |
| 1974 | The Challenge... A Tribute to Modern Art | Narrator |
| 1973 | Kelly Country | Narrator |
| 1973 | The Dean Martin Celebrity Roasts (serie) | Self |
| 1973 | Fraude | Self |
| 1973 | Orson Welles' Great Mysteries (serie) | Self - Host |
| 1973 | The American Film Institute Salute to ... (serie) | Self |
| 1973 | The Cave: a parable told by Orson Welles | Narrator |
| 1972 | The Man Who Came to Dinner | Sheridan Whiteside |
| 1972 | El hechicero | Mr. Cato |
| 1972 | Get to Know Your Rabbit | Mr. Delasandro |
| 1972 | Vive le cinema! | — |
| 1971 | La década prodigiosa | Théo Van Horn |
| 1971 | Dirigida por John Ford | Narrator (voice) |
| 1971 | V.I.P. Schaukel (serie) | Self |
| 1971 | Centinelas del Silencio | — |
| 1971 | Malpertuis | Cassavius |
| 1971 | Freedom River | Narrator |
| 1970 | An Evening with Orson Welles: The Golden Honeymoon | — |
| 1970 | Galería nocturna (Night Gallery) (serie) | Narrator |
| 1970 | Is It Always Right to Be Right? | Narrator |
| 1970 | Waterloo | Louis XVIII |
| 1970 | The Enemy Before Us | Narrator |
| 1970 | A Horse Called Nijinsky | Narrator |
| 1970 | Upon This Rock | Michelangelo (voice) |
| 1969 | ¿Cuál de las trece? | Markan |
| 1969 | La Estrella del Sur | Plankett |
| 1969 | Kampf um Rom II - Der Verrat | Justinian |
| 1969 | Tepepa | Colonel Cascorro |
| 1968 | La invasión de los bárbaros | Justinian |
| 1968 | The Name of the Game (serie) | Narrator |
| 1968 | Castillo de naipes | Leschenhaut |
| 1968 | Around the World of Mike Todd | Self - Narrator |
| 1968 | The Dick Cavett Show (serie) | Invitado especial |
| 1968 | Portrait: Orson Welles | Self |
| 1968 | Una Historia Inmortal | Charles Clay |
| 1968 | Oedipus the King | Tiresias |
| 1968 | Viena | Himself |
| 1967 | I'll Never Forget What's'isname | Jonathan Lute |
| 1967 | Beggars Would Ride | Narrator |
| 1967 | Omnibus (serie) | Self - Presenter |
| 1967 | Rowan & Martin's Laugh-In (serie) | Self |
| 1967 | Le désordre a vingt ans | Self |
| 1967 | Casino Royale | Le Chiffre |
| 1967 | Diez días que estremecieron al mundo | Narrator |
| 1967 | The Sailor from Gibraltar | Louis de Mozambique |
| 1966 | Un hombre para la eternidad | Cardinal Wolsey |
| 1966 | Orson Welles in Spain | Himself |
| 1965 | Miss Goodall and the Wild Chimpanzees | Self - Narrator (voice) |
| 1965 | Campanadas a medianoche | Falstaff |
| 1965 | National Geographic Specials (serie) | Narrator |
| 1965 | La conquista de un imperio | Akerman, Marco's Teacher |
| 1965 | A King's Story | Narrator |
| 1964 | The Finest Hours | Narrator (voice) |
| 1964 | Nella terra di Don Chisciotte (serie) | Himself |
| 1963 | Rogopag | The 'Director' (segment "La ricotta") |
| 1962 | El proceso | Albert Hastler |
| 1962 | The Tonight Show Starring Johnny Carson (serie) | Self |
| 1962 | The Merv Griffin Show (serie) | Self |
| 1961 | Los tártaros | Burundai |
| 1960 | An Arabian Night | Storyteller |
| 1960 | Una grieta en el espejo | Hagolin / Lamerciere |
| 1960 | David y Goliat | King Saul |
| 1959 | Escala prohibida | Captain Hart |
| 1959 | Impulso criminal | Jonathan Wilk |
| 1958 | Les Seigneurs de la forêt | Narrator (voice) |
| 1958 | Las raíces del cielo | Cy Sedgewick |
| 1958 | Orson Welles at Large: Portrait of Gina | Self - Host |
| 1958 | South Seas Adventure | Narrator |
| 1958 | El largo y cálido verano | Will Varner |
| 1958 | Sed de mal | Police Captain Hank Quinlan |
| 1957 | Sangre en el rancho | Virgil Renchler |
| 1956 | The Steve Allen Show (serie) | Self |
| 1956 | Cinépanorama (serie) | Self |
| 1955 | Around the World with Orson Welles (serie) | Host: Orson Welles |
| 1955 | Ford Star Jubilee (serie) | Oscar Jaffe |
| 1955 | Mister Arkadin | Gregory Arkadin |
| 1955 | Orson Welles' Sketch Book (serie) | Himself - Host |
| 1955 | Tres casos de asesinato | Lord Mountdrago ("Lord Mountdrago" segment) |
| 1954 | Trouble in the Glen | Sanin Cejador y Mengues |
| 1953 | L'uomo, la bestia e la virtù | Captain Perella, the Beast |
| 1953 | Return to Glennascaul: A Story That Is Told in Dublin | Narrator |
| 1952 | El enigma de Manderson | Sigsbee Manderson |
| 1951 | Hallmark Hall of Fame (serie) | Sheridan Whiteside |
| 1951 | Te quiero, Lucy (serie) | Orson Welles |
| 1950 | La rosa negra | Bayan |
| 1950 | What's My Line? (serie) | Self - Panelist |
| 1949 | El Príncipe de los Zorros | Cesare Borgia |
| 1949 | El tercer hombre | Harry Lime |
| 1949 | Cagliostro | Joseph Balsamo aka Count Cagliostro |
| 1948 | The Ed Sullivan Show (serie) | Self |
| 1947 | La dama de Shanghai | Michael O'Hara |
| 1946 | Mañana es vivir | John Andrew MacDonald |
| 1943 | Alma rebelde | Edward Rochester |
| 1943 | Estambul | Colonel Haki |
| 1941 | Ciudadano Kane | Charles Foster Kane |
| 1937 | The Spanish Earth | Narrator (voice) |
| 1934 | Corazones del tiempo (C) | Death |
