Credits

• 1989 ·The Hell's Gateas Dr. Johns
• 1987 ·Wartimeas professor Amundsen
• 1979 ·Seven Dangerous Womenas Enrico Cavallari
• 1978 ·Return of the Saintas Scheffer
• 1978 ·The War of the Robotsas Roger
• 1978 ·Covert Actionas Grant
• 1978 ·The Biggest Battleas American Commando Leader
• 1978 ·Blue Nudeas Donovan
• 1977 ·The Bloodsucker Leads the Danceas Count Richard Marnack
• 1977 ·Twilight of Loveas Guide
• 1977 ·Casanova & Co.as Marquis Coppafrata (uncredited)
• 1976 ·Violence for Kicksas Stefano's father
• 1976 ·Emanuelle in Bangkokas Jimmy
• 1975 ·Reflections in Blackas Anselmi
• 1975 ·Zorroas Fritz von Merkel
• 1974 ·The Murri Affairas Riccardo Murri
• 1974 ·The Minoras Carlo Salvi (as Giacomo Rossi-Stuart)
• 1974 ·The Last Four Daysas Jack Donati
• 1973 ·The Fighting Fists of Shanghai Joeas Tricky
• 1973 ·La ragazza fuoristradaas Giulio Morganti
• 1973 ·Death Smiles on a Murdereras Dr. von Ravensbrück - Walter's Father
• 1973 ·The Lonely Womanas Richard Leighton
• 1973 ·Mafia Junctionas Marco
• 1972 ·The Girl with the Moon Skinas Giacomo
• 1972 ·The Crimes of the Black Catas Victor Morgan
• 1972 ·You're Jinxed, Friend, You've Met Sacramentoas Tom Murdock
• 1972 ·Ben & Charlieas Hawkins, Pinkerton detective
• 1971 ·The Doubleas Giovanni's Brother
• 1971 ·The Night Evelyn Came Out of the Graveas Dr. Richard Timberlane
• 1971 ·Something Creeping in the Darkas Donald Forrest
• 1971 ·Kill Django...Kill Firstas Johnny MaGee / Django
• 1970 ·The Weekend Murdersas Ted Collins
• 1970 ·Hornets' Nestas Schwalberg
• 1970 ·Churchill's Leopardsas Major Powell
• 1970 ·The Last Day of the Waras Pvt. Kendall
• 1970 ·The Night of the Assassinas Lt. Tibbitt
• 1969 ·The 5-Man Armyas One of Gutierrez' Officers
• 1969 ·Shadow of Deathas Gert Muller
• 1969 ·The Battle of the Damnedas Major Carter
• 1969 ·Indovina chi viene a merenda?as Comandante del Lager
• 1968 ·Zorro the Foxas Don Pedro
• 1968 ·Raganas Kohler
• 1968 ·Bloody Che Contraas Prado
• 1968 ·Colpo sensazionale al servizio del Sifaras
• 1967 ·An Eye for an Eye, A Tooth for a Toothas Jeff Gordon / Agent Z-55
• 1967 ·The Glass Sphinxas Ray
• 1967 ·Snow Devilsas Cmdr. Rod Jackson
• 1966 ·The Big Blackoutas Roland
• 1966 ·Ring Around the Worldas Hitman
• 1966 ·War Between the Planetsas Cmdr. Rod Jackson
• 1966 ·Kill, Baby... Kill!as Dr. Paul Eswai
• 1966 ·Knives of the Avengeras King Arald
• 1966 ·Degueyoas Norman Sandel
• 1965 ·Duel at Sundownas Quents
• 1964 ·Kidnapped to Mystery Islandas Tremal Naik
• 1964 ·The Revenge of the Gladiatorsas Fulvio
• 1964 ·Seven Slaves Against the Worldas Gaius
• 1964 ·Massacre At Grand Canyonas Sheriff Burt Cooley
• 1964 ·The Last Man on Earthas Ben Cortman
• 1964 ·Temple of the White Elephantas Reginald Milliner
• 1964 ·Badmen of the Westas Sheriff Gary Smith
• 1963 ·Arms of the Avengeras Vannozzo Duchesca
• 1963 ·Gunfight at Red Sandsas Sheriff Lance Corbett
• 1963 ·The Shortest Dayas Soldato austriaco (uncredited)
• 1963 ·Zorro and the Three Musketeersas Athos
• 1963 ·Catherine of Russiaas Count Poniatowski
• 1962 ·The Avengeras Eurialo
• 1962 ·The Reluctant Saintas
• 1962 ·Sodom and Gomorrahas Ishmael
• 1962 ·Invasion 1700as (as Giacomo Rossi-Stuart)
• 1961 ·Slave of Romeas
• 1960 ·Five Branded Womenas
• 1959 ·The Night of the Great Attackas
• 1959 ·Caltiki, the Immortal Monsteras Prof. Rodriguez's Assistant
• 1959 ·Knight Without a Countryas Ruggero
• 1958 ·The Day the Sky Explodedas Stuart (uncredited)
• 1958 ·The Silent Enemyas Rosati
• 1957 ·Il conte di Materaas il duca Paolo Bressi
• 1956 ·The House of Intrigueas Henry
• 1955 ·The Red Cloakas
• 1953 ·Jeunes mariésas