Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Actor | Bichos, una aventura en miniatura | 1998 | Mr. Soil |
| Actor | El planeta de los simios | 1968 | Cornelius |
| Actor | Batman (1967) | Bookworm | |
| Actor | Huida del planeta de los simios | 1971 | Cornelius |
| Actor | La conquista del planeta de los simios | 1973 | Caesar |
| Actor | La bruja novata | 1971 | Mr. Jelk |
| Actor | La rebelión de los simios | 1972 | Caesar |
| Actor | Noche de miedo | 1985 | Peter Vincent |
| Actor | El Planeta de los Simios | Galen | |
| Actor | Un mar de líos | 1987 | |
| Producer | Un mar de líos | 1987 | |
| Actor | El día más largo | 1962 | Pvt. Morris |
| Actor | Cleopatra | 1963 | Octavian - Caesar Augustus |
| Actor | El abismo negro | 1979 | V.I.N.CENT (voice) |
| Actor | Muerte bajo el sol | 1982 | Rex Brewster |
| Actor | La aventura del Poseidón | 1972 | Acres |
| Actor | El violento Kelly | 1975 | Tony Da Vince |
| Actor | Noche de miedo 2 | 1988 | Peter Vincent |
| Actor | Un gato para el FBI | 1965 | Gregory Benson |
| Actor | ¡Qué verde era mi valle! | 1941 | Huw Morgan |
| Actor | El gato que vino del espacio | 1978 | Mr. Stallwood |
| Actor | Lassie, la cadena invisible | 1943 | Joe Carraclough |
| Actor | Curso 1984 | 1982 | Terry Corrigan |
| Actor | Piratas de Aguas Tenebrosas | ||
| Actor | Detrás del planeta de los simios | 1998 | Himself - Hosted by (also archive footage) |
| Actor | El retorno del rey | 1980 | Samwise Gamgee |
| Actor | Clase sangrienta | 1989 | Mr. Dante |
| Actor | La historia más grande jamás contada | 1965 | Matthew |
| Actor | It! | 1966 | Arthur Pimm |
| Actor | La Leyenda De La Mansión Del Infierno | 1973 | Benjamin Franklin Fischer |
| Actor | Cuentos del Mono de Oro | Bon Chance Louie | |
| Actor | Macbeth | 1948 | Malcolm |
| Actor | Funny Lady | 1975 | Bobby Moore |
| Actor | Crónicas marcianas | Father Stone | |
| Actor | Al loro con el oro | 1967 | Bullwhip Griffin |
| Actor | Miracle on 34th Street | 1973 | Dr. Sawyer |
| Actor | El juez de la horca | 1972 | Frank Gass |
| Actor | Thunderhead - Son of Flicka | 1945 | Ken McLaughlin |
| Actor | Las aventuras del oso Yogui | 1964 | Bullwinp Griffin |
| Actor | Mowgli y Baloo (El libro de la selva 2) | 1997 | King Murphy |
| Actor | Un grito en la niebla | 1960 | Malcolm |
| Actor | Alice in Wonderland (1985) | The March Hare | |
| Actor | The Big Picture | 1989 | Judge |
| Actor | Viaje al Triángulo de las Bermudas | Dr. Jonathan Willoway | |
| Actor | Shakma | 1990 | Sorenson |
| Actor | Carmilla | 1989 | Inspector Amos |
| Actor | El Hombre Atrapado | 1941 | Vaner |
| Actor | The Hollywood Squares | Square Placer (1975) | |
| Actor | Unlikely Angel | 1996 | Saint Peter |
| Actor | La rebelde | 1965 | Walter Baines |
| Actor | My Friend Flicka | 1943 | Ken McLaughlin |
| Actor | El póker de la muerte | 1968 | Nick Evers |
| Actor | Las llaves del reino | 1944 | Francis Chisholm, as a boy |
| Actor | That's Entertainment, Part II | 1976 | (archive footage) |
| Actor | Hart to Hart: Home Is Where the Hart Is | 1994 | Jeremy Sennet |
| Actor | Muerte en el invierno | 1987 | Mr. Murray |
| Actor | Querido profesor | 1971 | Mr. Proffer |
| Actor | El rayo destructor del planeta desconocido | 1978 | Doctor Mellon |
| Actor | La maldición de la reina dragón | 1981 | Gillespie |
| Actor | Cricket on the Hearth | 1967 | Criket Crocket Narrator |
| Actor | Hollywood Wives | Jason Swandle | |
| Actor | Tonto el último | 1979 | Jenkins |
| Actor | Los seres queridos | 1965 | D.J.Jr. |
| Actor | El arpa de hierba | 1995 | Amos Legrand |