Credits

• 2023 · Print the Legend as Narrator (voice)
• 2023 · The Concavenator Valley as
• 2022 · Marauders from the Mediterranean: The Macabre Magic of the Spanish Zombie Film as Self
• 2019 · Abuelita / Granny as Emperor of Evil
• 2018 · Jack Taylor, testigo del fantástico as
• 2018 · Doses of Horror as Luis ("A Dose of Peeping Toms & Vampires" segment) (archive footage) (uncredited)
• 2015 · The Simón's Jigsaw: A Trip to the Universe of Juan Piquer Simón as Self
• 2015 · Soledad Miranda, Flower in the Desert as Himself
• 2014 · Queridos monstruos as Self
• 2014 · Clawing! A Journey Through the Spanish Horror as Self - Actor
• 2014 · Wax as Dr. Knox
• 2014 · The Ravine of the British as Andersen (voice)
• 2013 · La última película de Jess Franco as Self
• 2013 · Son of Cain as Andrew Holsteter
• 2010 · The Man Who Saw Frankenstein Cry as Self
• 2010 · Agnosia as Meissner
• 2007 · Beloved Count as (archive footage)
• 2006 · Goya's Ghosts as Chamberlain
• 2005 · His Last Request as The Father
• 2004 · The Birthday as Ron Fulton
• 2002 · El refugio del mal as Don Alberto
• 2001 · Far Away as James
• 2000 · Presence of Mind as Father
• 2000 · Antivicio as
• 1999 · The Ninth Gate as Victor Fargas
• 1993 · The Milky Life as Cardenal Logan
• 1992 · 1492: Conquest of Paradise as Vicuna
• 1992 · Sevilla Connection as El rubio
• 1992 · The Naked Target as William
• 1989 · Fine Gold as
• 1989 · The Return of the Musketeers as Gentleman on Horseback
• 1989 · The Man in the Brown Suit as Police Inspector
• 1989 · Autumn Rain as
• 1988 · Edge of the Axe as Christopher Caplin
• 1988 · Iguana as Captain 'Old Lady II'
• 1987 · Rest in Pieces as David Hume
• 1987 · Policía as Inspector Ferrara
• 1986 · El vivo retrato as Profesor Roger Springer
• 1986 · Crystal Heart as Journalist
• 1985 · Pagina de Sucesos as Axel
• 1985 · A la pálida luz de la luna as
• 1985 · Angel of Death as Aaron Horner
• 1985 · The Sea Serpent as Hospital Killer
• 1985 · La hoz y el Martínez as Comisario ruso
• 1984 · Panther Squad as Frank Bramble
• 1982 · Pieces as Prof. Arthur Brown
• 1982 · Murder in the Central Committee as Agente
• 1982 · Conan the Barbarian as Priest
• 1982 · La Máscara Negra as
• 1982 · The Icebox Murders as Dr. Beneau / Michele
• 1981 · Cervantes as Pedro de Isuza
• 1981 · Police Destination Oasis as Sigma (archive footage)
• 1980 · Vicious and Nude as Juan Aznar
• 1978 · Obscene Desire as o. A.
• 1978 · Rings of Fear as Michael Parravicini
• 1978 · Nathalie: Escape from Hell as Lt. Erik Muller
• 1977 · Call of the Blonde Goddess as Jack Haus
• 1977 · Sexy Sisters as Dr. Barnes
• 1977 · Journey to the Centre of the Earth as Olsen
• 1977 · Las desarraigadas as Eric Lerner
• 1976 · Curro Jiménez as Anselmo García
• 1975 · The Mummy's Revenge as Prof. Natan Stern
• 1975 · The Adolescents as Mr. Hanson
• 1975 · Exorcismo as Father Adrian Dunning (voice)
• 1975 · Devil's Exorcist as Dr. Jack Morris
• 1974 · The Night of the Sorcerers as Prof Jonathan Grant
• 1974 · The House of the Lost Dolls as Sigma
• 1974 · The Ghost Galleon as Howard Tucker
• 1973 · Autopsy as Dr. Azcona
• 1973 · The Killer Is One of Thirteen as Harlan
• 1973 · The Vampires' Night Orgy as Luis
• 1973 · La llamaban la madrina as Espía
• 1973 · Female Vampire as Baron von Rathony
• 1973 · Tender and Perverse Emmanuelle as Michel Dreville
• 1972 · The Vengeance of Dr. Mabuse as Farkas / Mabuse
• 1972 · Dr. Jekyll vs. the Werewolf as Dr. Henry Jekyll
• 1972 · Vampir Cuadecuc as Self
• 1972 · Sex Charade as
• 1970 · Nightmares Come at Night as Cynthia's Lover
• 1970 · Count Dracula as Quincey Morris
• 1970 · Eugenie as Mirvel
• 1969 · S.O.S Invasion as Martin Zare
• 1968 · Succubus as William Francis Mulligan
• 1968 · Two Eyes to Kill as Max (as Jak Taylor)
• 1967 · Joe Navidad as John Novak
• 1967 · Agent Sigma 3 - Mission Goldwalther as Charles Butler / Agent Sigma 3
• 1965 · Fall of the Mohicans as Duncan Edward
• 1964 · Tomb of the Pistolero as Herbert Brandon
• 1964 · Billy the Kid as Black Jack
• 1963 · Neutron vs. Dr. Caronte as Professor Thomas (as Grek Martin)
• 1962 · Nostradamus: The Genie of Darkness as Igor
• 1962 · Neutron the Atomic Superman vs. the Death Robots as Professor Thomas
• 1962 · Nostradamus and the Destroyer of Monsters as Igor
• 1962 · Neutron and the Black Mask as Professor Thomas
• 1957 · Inside Information as
• 1956 · Pasaporte al infierno as (uncredited)