Credits

• 1975 · Hustle as Man in Phone Booth
• 1973 · The Don Is Dead as Don Aggimio Bernardo
• 1972 · The Man as Haley
• 1972 · Man On A String as Carlo Buglione (as John Duke Russo)
• 1971 · Maybe I'll Come Home in the Spring as Doctor (uncredited)
• 1969 · The Greatest Mother of 'em All as Gene Frazer
• 1968 · The Split as Maccione (uncredited)
• 1968 · Hawaii Five-O as Abilleno
• 1968 · Hawaii Five-O as Willy Vance
• 1968 · Hawaii Five-O as Albert Jovanko
• 1968 · Hawaii Five-O as Eddie Rizzo
• 1967 · The Invaders as Lt. Alvarado
• 1966 · Mission: Impossible as Tiso Kastner
• 1966 · Star Trek as Lt. Commander Giotto
• 1966 · Star Trek as Commodore Wesley
• 1963 · The Fugitive as Sergeant Endicot
• 1963 · The Fugitive as Bus Driver
• 1963 · The Outer Limits as Dr. Terrell
• 1962 · Follow That Dream as Al (as John Duke)
• 1961 · The Crimebusters as Hood
• 1960 · The Case of the Dangerous Robin as Teddy Thomas
• 1960 · Pay or Die! as Lupo Miano (as John Duke)
• 1959 · Never Steal Anything Small as Ward (as John Duke)