Credits

• 1973 ·Ludwigas Prince Luitpold
• 1970 ·Adiós, Sabataas Colonel Skimmel
• 1970 ·Hornets' Nestas Capt. Kreuger
• 1970 ·Symphony of Loveas conte Roskoff
• 1970 ·The Last Day of the Waras Maj. Skorch
• 1970 ·A Sword to Brandoas
• 1969 ·Battle of the Commandosas Lieutenant Hapke
• 1969 ·The Battle of the Damnedas Colonel Kleist
• 1969 ·The Battle of El Alameinas General Schwartz
• 1968 ·Gatling Gunas Mr. Bishop
• 1968 ·To Hell and Backas Ernest Ward
• 1967 ·Two Faces of the Dollaras Col. Blackgrave
• 1967 ·Professionals for a Massacreas Major Lloyd
• 1967 ·Any Gun Can Playas Lawrence Blackman
• 1967 ·The Big Gundownas Baron von Schulenberg
• 1966 ·Secret Agent Super Dragonas Coleman (as Gerard Haerther)
• 1964 ·The Road to Fort Alamoas Mr. Silver
• 1963 ·The Shortest Dayas Colonnello comandante (uncredited)
• 1963 ·Two Colonelsas
• 1962 ·The Changing of the Guardas German officer
• 1961 ·Ursus in the Valley of the Lionsas Lothar
• 1960 ·Under Ten Flagsas Captain del Sommergibile
• 1960 ·Five Branded Womenas Col. von Elm
• 1959 ·The Giant of Marathonas Hippia
• 1959 ·The Great Waras Capitano Austriaco
• 1959 ·Caltiki, the Immortal Monsteras Max Gunther
• 1959 ·The White Warrioras Prince Sergei Vorontzov